2426:
1035:
1239:
981:
2399:
1424:
1825:
1718:
1695:
2726:
1971:
1894:
1108:
2076:
1944:
1921:
2252:
2012:
800:
2534:
1374:
2457:
1058:
2588:
2156:
2507:
2611:
1081:
833:
1351:
1802:
1672:
1543:
1848:
2372:
2344:
2484:
1297:
2298:
1749:
1320:
2053:
2275:
1516:
863:
1458:
1012:
1401:
2222:
1596:
1566:
1274:
1200:
1649:
1161:
935:
1626:
2753:
2699:
7099:
2133:
2676:
3200:
1134:
958:
3248:
2646:
912:
2321:
7045:
7009:
1489:
2780:
1871:
2110:
2561:
1776:
886:
168:
3188:
6935:
3260:
3082:
33:
7171:
7117:
6991:
3224:
2814:
2191:
2883:
5158:
4319:
5168:
392:
7135:
6955:
7153:
3236:
6915:
3176:
4329:
6895:
6835:
6875:
6855:
1970:
3622:
6815:
4339:
7081:
6247:
7189:
7063:
2425:
7027:
2533:
2155:
2610:
1893:
2398:
2371:
3212:
2506:
1238:
2011:
1373:
2075:
980:
1423:
2725:
1717:
1319:
1943:
1199:
1034:
2752:
2966:
and speech, and both his mother and wife were deaf, profoundly influencing Bell's life's work. His research on hearing and speech further led him to experiment with hearing devices, which eventually culminated in his being awarded the first
2251:
1920:
832:
1542:
5123:
5825:
1694:
2587:
1350:
2456:
1400:
1011:
6065:
2297:
1671:
1748:
1160:
799:
1080:
5830:
1595:
1565:
4272:
2221:
1057:
1847:
2698:
2483:
1824:
6080:
6025:
1648:
1515:
1801:
6020:
5128:
2622:
1625:
6060:
5840:
2343:
2274:
6035:
5835:
5507:
5097:
5845:
6259:
6224:
5805:
2544:
Australian radio sets usually had the positions of radio stations marked on their dials. The illustration is a dial from a transistorised, mains-operated
Calstan radio, circa 1960s. (
4739:
2386:. This schematic shows the circular paths traced by the holes, which may also be square for greater precision. The area of the disk outlined in black shows the region scanned. (from
1488:
2645:
1107:
1457:
5560:
5492:
5082:
5530:
349:, a technology independent of any given medium, has provided global access to services for individual users and further reduced location and time limitations on communications. (
5775:
1296:
6050:
68:
2320:
2779:
2052:
4683:
4453:
5914:
2109:
2132:
5855:
5730:
2971:
for the telephone, on March 7, 1876. Bell considered his invention an intrusion on his real work as a scientist and refused to have a telephone in his study. (
2675:
862:
3596:
811:
4598:
1273:
5850:
4438:
934:
6823:
6030:
5133:
5780:
1133:
345:
communications have gradually been supplemented by data. The physical limitations of metallic media prompted the development of optical fibre. The
2190:
957:
4458:
199:, is the transmission of information with an immediacy comparable to face-to-face communication. As such, slow communications technologies like
6603:
5047:
6321:
6113:
5609:
5332:
49:
5670:
5262:
5092:
4282:
4277:
3303:
6691:
5720:
2560:
911:
734:
6460:
6214:
6070:
5929:
489:
145:
6581:
6493:
5735:
5630:
2413:
was formed in
England in 1910. The photo shows a typical early scene, from 1906, with Marconi employee Donald Manson at right. (from
1870:
120:
17:
6943:
5820:
6277:
5785:
5576:
5469:
5282:
4709:
2836:
1442:
140:
135:
6963:
6923:
6394:
5888:
5740:
5535:
5307:
5072:
4882:
4473:
1775:
6903:
6843:
7209:
6863:
6669:
6614:
6427:
6288:
6040:
5992:
5949:
5204:
4756:
4752:
4377:
4304:
130:
6883:
885:
6647:
6416:
6405:
6365:
6332:
5959:
5550:
5502:
5394:
5389:
5087:
4992:
4299:
4289:
4267:
4074:
664:
115:
100:
95:
7179:
6376:
6015:
4799:
4765:
150:
3437:
110:
105:
6658:
6636:
6515:
6449:
6219:
6055:
5354:
4513:
4342:
4294:
4143:
1729:
629:
90:
6592:
6548:
6438:
5512:
5474:
5042:
5007:
4962:
4748:
4623:
4613:
4418:
4069:
278:
Early telecommunication networks used metal wires as the medium for transmitting signals. These networks were used for
259:. Long-distance technologies invented during the 20th and 21st centuries generally use electric power, and include the
125:
6786:
6680:
6526:
6471:
6106:
5939:
5815:
5725:
5675:
5635:
5602:
5454:
4932:
4927:
4822:
4628:
4518:
4448:
4163:
3125:
2767:
Internet Radio" was the first stand-alone product that let users listen to
Internet radio without a computer. (from
1553:
First television test broadcast transmitted by the NHK Broadcasting
Technology Research Institute in May 1939 (from
6537:
6299:
5810:
5800:
5655:
5424:
5384:
5364:
5344:
5247:
5052:
5027:
4942:
4922:
4872:
4842:
4832:
4688:
4608:
4573:
4558:
4543:
4498:
4433:
3943:
3494:
3296:
2167:
5790:
6570:
6191:
6136:
5909:
5795:
5710:
5685:
5540:
5359:
5138:
5017:
5012:
4892:
4563:
4059:
739:
6383:
6181:
6171:
6156:
5924:
5760:
5695:
5665:
5640:
5545:
5439:
5434:
5409:
5267:
5032:
4987:
4967:
4957:
4857:
4663:
4638:
4488:
4483:
4463:
4428:
4413:
4054:
1022:
British Post Office engineers inspect
Guglielmo Marconi's wireless telegraphy (radio) equipment in 1897. (from
816:
669:
7197:
6186:
6161:
6141:
6075:
5974:
5770:
5700:
5680:
5464:
5414:
5374:
5327:
5322:
5312:
5297:
5292:
5287:
5272:
5257:
5252:
5242:
5237:
5232:
5227:
5057:
4972:
4952:
4837:
4827:
4735:
4726:
4717:
4648:
4618:
4603:
4588:
4578:
4568:
4533:
4528:
4478:
4423:
4398:
4079:
714:
298:. Other early pioneers in electrical and electronic telecommunications include co-inventors of the telegraph
6343:
6166:
6146:
6099:
5969:
5715:
5705:
5650:
5645:
5595:
5555:
5497:
5459:
5449:
5429:
5419:
5404:
5399:
5379:
5349:
5317:
5302:
5277:
5213:
5102:
5037:
5002:
4937:
4917:
4907:
4867:
4852:
4847:
4658:
4653:
4593:
4548:
4508:
4403:
4332:
4115:
4012:
3546:
3348:
3320:
2826:
1960:
1860:
1478:
1189:
1097:
529:
1411:
Alexander Graham Bell was awarded the first U.S. patent for the invention of the telephone in 1876. (from
7237:
7232:
6266:
6151:
5964:
5954:
5944:
5934:
5881:
5765:
5690:
5444:
5369:
5339:
5143:
5062:
5022:
4997:
4977:
4912:
4887:
4877:
4862:
4713:
4633:
4583:
4538:
4523:
4503:
4493:
4468:
4408:
4322:
3846:
3289:
2518:
749:
709:
479:
2262:
Lee DeForest broadcasting
Columbia phonograph records on pioneering New York station 2XG, in 1916 (from
6999:
6354:
6176:
6045:
5997:
5919:
5660:
5197:
4982:
4947:
4902:
4897:
4643:
4553:
4443:
4370:
4203:
4125:
4064:
3766:
1760:
574:
307:
244:
235:
and empty space made to carry electromagnetic signals. These paths of transmission may be divided into
85:
2170:. This photo was taken in earlier days when Voight was a prominent British athlete, and winner of the
6702:
3975:
3970:
3931:
3776:
3681:
3601:
3534:
3368:
2792:
2600:
2523:
2145:
2099:
2001:
1933:
1340:
1263:
1001:
764:
634:
6128:
4814:
4792:
3567:
3509:
3462:
3422:
3065:
2968:
2862:
2832:
2688:
2665:
2577:
2496:
2446:
2361:
2333:
2310:
2287:
2241:
2211:
2065:
1837:
1615:
1585:
1532:
1413:
1361:
Ad for the beginning of experimental television broadcasting in New York City by RCA in 1939 (from
1150:
970:
822:
504:
375:
360:
2308:
Historical marker commemorating the first telephone central office in New York State (1878) (from
6559:
4158:
4002:
3948:
3871:
3771:
3452:
3338:
3333:
2959:
2769:
2550:
2473:
2415:
2264:
2180:
2122:
1931:
Artist's conception: 21st-century videotelephony imagined in the early 20th century (1910) (from
1910:
1883:
1791:
1765:
1738:
1682:
Oliver Lodge's 1894 lectures on Hertz demonstrated how to transmit and detect radio waves. (from
1505:
1309:
1047:
754:
514:
1999:, used by the parents in the foreground and their daughter on the viewing display (1878). (from
6709:
5874:
4095:
3876:
3696:
3641:
3636:
3447:
3412:
3151:
649:
569:
484:
295:
283:
175:
7053:
6482:
6310:
5190:
4363:
3997:
3796:
3761:
3686:
3666:
3579:
3474:
3395:
2973:
2905:
2715:
2437:
2388:
1814:
1638:
1555:
1447:
1363:
1286:
1250:
1123:
1070:
947:
924:
901:
852:
684:
425:
315:
236:
3328:
3121:, which was said to operate from the owner's bedroom using "parts of a questionable nature"?
2598:
AT&T magazine advertisement announcing commercial launch of
Picturephone service. (from
7227:
6814:
6804:
6764:
3906:
3866:
3836:
3589:
3524:
3353:
3030:
3025:
2737:
2175:
1955:
1659:
Heinrich Rudolf Hertz (1856–1894) proved the existence of electromagnetic radiation. (from
729:
584:
327:
287:
260:
248:
442:
and computers are capable of video calling, reducing the demand for separate videophones.
8:
6775:
6731:
6720:
6202:
5112:
4785:
3916:
3856:
3611:
3573:
3378:
3363:
2954:
1118:
594:
539:
282:
and telephony for many decades. In the first decade of the 20th century, a revolution in
220:
6600:
2444:), invented 1876 and first displayed at the Centennial Exposition, Philadelphia. (from
247:. Several methods of long-distance communication before the modern era used sounds like
7107:
6753:
6742:
6318:
6263:
4173:
4148:
4036:
3901:
3831:
3806:
3741:
3584:
3192:
3180:
3045:
2946:
2660:
1905:
719:
659:
654:
564:
494:
450:, whose goal is to create the illusion that remote participants are in the same room. (
351:
299:
208:
191:
64:
6091:
5587:
790:
The following are images from various telecommunication-related articles on
Knowledge.
7161:
7098:
6688:
6504:
5167:
4188:
4110:
4105:
4024:
4007:
3965:
3811:
3646:
3606:
3479:
3373:
3312:
3264:
3252:
3240:
2995:
2949:
inventor, scientist, and engineer who is credited with patenting the first practical
2236:
1986:
1527:
1215:
759:
674:
291:
252:
60:
6457:
3851:
3199:
2656:
1908:, opened in 1932. At right is the 2005 eastern extension, the John Peel wing. (from
7071:
7035:
6979:
6578:
6490:
6246:
4193:
4153:
4133:
4100:
4029:
3987:
3896:
3751:
3736:
3691:
3651:
3499:
3358:
3343:
3040:
3035:
3020:
2912:
2742:
2635:
2629:", showed how almost any person handy with simple tools could a build an effective
2042:
1991:
1707:
1684:
1661:
1610:
1390:
1228:
1223:
1024:
875:
843:
704:
689:
549:
335:
331:
6274:
1705:
Donald Manson working as an employee of the
Marconi Company (England, 1906) (from
1636:
RCA 630-TS, the first mass-produced television set, which sold in 1946–1947 (from
7017:
6391:
3816:
3676:
3442:
3417:
3405:
3204:
2410:
2206:
1786:
1733:
896:
694:
644:
639:
579:
554:
474:
319:
232:
6666:
6611:
6424:
6285:
5866:
2517:
The
Kyocera VP-210 Visual Phone was the first commercial mobile videophone. The
1904:
The British Broadcasting Corporation's landmark and iconic London headquarters,
7143:
7125:
7089:
7008:
6934:
6644:
6625:
6413:
6402:
6362:
6329:
5182:
4355:
4019:
3886:
3861:
3821:
3791:
3671:
3504:
3457:
3432:
3390:
3228:
3015:
1580:
1335:
1219:
1176:
452:
404:
311:
204:
6954:
6914:
6373:
2736:
Early experiment demonstrating refraction of microwaves by a paraffin lens by
7221:
6894:
6854:
6834:
6655:
6633:
6512:
6446:
5161:
4777:
4168:
3936:
3926:
3841:
3731:
3726:
3716:
3706:
3519:
3385:
3010:
2630:
2232:
2171:
2033:
1996:
1982:
1473:
1331:
1172:
769:
544:
499:
323:
171:
6874:
6589:
6545:
6435:
6783:
6677:
6523:
6468:
4046:
3881:
3826:
3756:
3721:
3661:
3551:
3541:
3400:
3216:
3139:
3099:
3005:
3000:
2710:
1576:
1385:
1211:
846:
in 1925 with his televisor equipment and dummies "James" and "Stooky Bill"
509:
447:
417:
396:
303:
240:
212:
167:
6534:
6296:
2494:
The master telephone patent granted to Bell, 174465, March 10, 1876 (from
1858:
The master telephone patent, 174465, granted to Bell, March 7, 1876 (from
1812:
An early Smart TV from 2012 running the discontinued Orsay platform (from
341:
Since the 1960s, the proliferation of digital technologies has meant that
6567:
5171:
4246:
3891:
3801:
3786:
3746:
3711:
3561:
3143:
had a special version, known as Modular Windows, that was controlled via
3112:
because the station's owner and morning show host hailed from that state?
2813:
2383:
2202:
2029:
2026:
1606:
699:
439:
342:
224:
200:
3187:
3081:
2882:
1388:, a popular singing group, gathered around the radio at the time. (from
1068:
The first mass-produced Czechoslovak TV-set Tesla 4001A (1953–57) (from
32:
3953:
3656:
3556:
3489:
3467:
3259:
3144:
2441:
1469:
1180:
1145:
744:
679:
609:
599:
524:
268:
228:
7170:
7116:
6990:
6340:
3223:
2627:
Construction and Operation of a Simple Homemade Radio Receiving Outfit
4236:
3701:
3514:
3281:
3117:
3091:
2963:
2950:
1958:, the result of decades long R&D at a cost of over $ 500M. (from
624:
619:
435:
391:
279:
264:
6351:
1045:"Doc" Herrold is shown at the microphone of KQW, early 1920s. (from
6699:
4231:
4221:
4138:
3958:
3781:
3175:
2764:
1438:
724:
614:
589:
534:
346:
179:
7152:
7134:
3235:
2440:
in a 1932 silent film. Shows Bell's second telephone transmitter (
2285:
1917 wall telephone, open to show magneto and local battery (from
6556:
4226:
4211:
3427:
3058:
1184:
519:
256:
183:
2962:, grandfather, and brother had all been associated with work on
2790:
Typical low-cost webcam used with many personal computers (from
2546:
Click image for a high resolution view, with readable callsigns.
2331:
Antonio Meucci, 1854, constructed telephone-like devices. (from
6479:
6307:
4251:
4216:
3621:
3529:
2572:
2037:
2023:
1435:
216:
211:
have been used for telecommunications throughout history, from
6761:
3115:... that US radio regulators sought to shut down Ohio station
2089:(Mod II) fully enclosed in its housing, control pad at bottom
243:, allowing for a single medium to transmit several concurrent
6772:
6728:
6717:
4241:
4178:
3484:
2713:, sometimes used when no program material is available (from
604:
421:
272:
6750:
6739:
2467:
Charles Logwood broadcasting at station 2XG, New York City,
1384:
Around 1920, radio broadcasting started to get popular. The
6501:
4183:
3156:
3130:
3108:
2930:
2924:
2120:
Broadcasting pioneer Frank Conrad in a 1921 portrait (from
559:
1579:, 1861, constructed the first telephone, today called the
446:
implies group communication. Videoconferencing is used in
7188:
2918:
991:
An exposed view of the Picturephone's rear circuit board
79:
Knowledge portal for content related to Telecommunication
6622:
6121:
5617:
2945:; March 3, 1847 – August 2, 1922) was a Scottish-born
1985:" combination videophone-television, conceptualized by
3170:
1995:
magazine. The drawing also depicts then-contemporary
2921:
2859:
2933:
2915:
2521:(PHS) phone was introduced in Japan (1999). (from
1091:Code of letters and symbols for Chappe telegraph (
434:are standalone devices for video calling (compare
372:
195:, often used in its plural form or abbreviated as
5896:
430:There are many terms to refer to videotelephony.
286:began with breakthroughs including those made in
7219:
5212:
4385:
2239:which produced a strong telephone signal. (from
1732:logo, first introduced in 1975 and based on the
1763:at the 3KZ microphone, in the late 1930s (from
1307:Caricature of Sir John Reith, by Wooding (from
159:
6807:sister projects provide more on this subject:
4807:
1222:, was the world's first commercially produced
6107:
5882:
5603:
5198:
4793:
4371:
3297:
1249:Right side view, housing removed, one of its
6226:South Georgia and the South Sandwich Islands
2881:
2166:Emil Voigt, founder of 2KY on behalf of the
2927:
1334:using an Ericsson videophone to speak with
735:Electrical telegraphy in the United Kingdom
6114:
6100:
5889:
5875:
5610:
5596:
5205:
5191:
4800:
4786:
4378:
4364:
4328:
3304:
3290:
2821:Here are some tasks awaiting attention:
490:Orthogonal frequency-division multiplexing
326:, as well as inventors of television like
3106:" was a feature on Montana radio station
2143:The French Matra videophone (1970) (from
363:Refresh with new selections below (purge)
308:inventors and developers of the telephone
2955:American Telephone and Telegraph Company
390:
174:at the satellite communication facility
166:
6986:
6810:
6797:
3152:a regional radio group with 75 stations
3066:
2863:
873:Reginald Fessenden (around 1906) (from
376:
361:
207:are excluded from the definition. Many
69:update the maintenance information here
14:
7220:
3311:
2686:Top of cellular telephone tower (from
1503:of radio broadcasting in the US (from
1338:, a popular TV show host (1969) (from
6604:Telecommunications in popular culture
6095:
5870:
5618:Telecommunications in North America
5591:
5186:
4781:
4359:
3285:
3128:examiner found that billing fraud at
3095:sparked controversy in Mexican radio?
2063:Old Receiver schematic, c.1906 (from
1609:, 1876, designed a telephone using a
1443:The Children's Museum of Indianapolis
665:International Telecommunication Union
6322:Businesspeople in telecommunications
6122:Telecommunications in South America
4338:
2623:United States government publication
438:). In the present day, devices like
27:
1981:"Fiction becomes fact": Imaginary "
1730:Australian Broadcasting Corporation
630:Integrated Services Digital Network
24:
7187:
7169:
7151:
7133:
7115:
7097:
7079:
7061:
7043:
7025:
7007:
6989:
6953:
6933:
6913:
6893:
6873:
6853:
6833:
6813:
6692:Telecommunications for development
6245:
3165:
3080:
1835:Antonio Meucci's telephone. (from
1613:in Highland Park, Illinois. (from
63:when editing, especially if using
25:
7249:
6461:Telecommunications infrastructure
3134:"merited the severest sanctions"?
3126:Federal Communications Commission
968:Private conversation, 1910 (from
782:
6582:Telecommunications organizations
6494:International telecommunications
6240:
5731:Saint Vincent and the Grenadines
5166:
5157:
5156:
4684:Sahrawi Arab Democratic Republic
4454:Democratic Republic of the Congo
4337:
4327:
4318:
4317:
3944:Free-space optical communication
3620:
3258:
3246:
3234:
3222:
3210:
3198:
3186:
3174:
2911:
2812:
2778:
2751:
2724:
2697:
2674:
2644:
2609:
2586:
2559:
2532:
2505:
2482:
2455:
2424:
2397:
2370:
2342:
2319:
2296:
2273:
2250:
2220:
2189:
2168:Labor Council of New South Wales
2154:
2131:
2108:
2074:
2051:
2010:
1969:
1942:
1919:
1892:
1869:
1846:
1823:
1800:
1774:
1747:
1716:
1693:
1670:
1647:
1624:
1594:
1564:
1541:
1514:
1487:
1456:
1422:
1399:
1372:
1349:
1318:
1295:
1272:
1237:
1198:
1159:
1132:
1106:
1079:
1056:
1033:
1010:
979:
956:
933:
910:
884:
861:
831:
798:
31:
6278:Telecommunications by continent
2803:
1284:Family watching TV, 1958 (from
945:Philo Farnsworth in 1924 (from
740:Norwegian Public Safety Network
6395:Telecommunications engineering
5915:Federated States of Micronesia
5897:Telecommunications in Oceania
5214:Telecommunications in Europe
5124:British Indian Ocean Territory
3131:a South Carolina radio station
2837:WikiProject Telecommunications
2661:telephone switchboard exchange
2355:Bell prototype telephone stamp
2174:for the five mile race at the
670:Telecommunications engineering
13:
1:
6670:Telecommunications techniques
6615:Privacy of telecommunications
6428:History of telecommunications
6289:Telecommunications by country
6255:Select to view subcategories
4386:Telecommunications in Africa
2893:
1530:or "lovers' telephone" (from
1441:, 1958. In the collection of
715:Transatlantic telegraph cable
55:by an editor, and are needed.
6648:Telecommunications standards
6417:Telecommunications equipment
6406:Telecommunications engineers
6366:Telecommunications economics
6333:Telecommunications companies
5856:United States Virgin Islands
4116:Telecommunications equipment
2985:List of selected biographies
1961:History of telecommunication
1861:History of telecommunication
1479:History of telecommunication
1190:History of telecommunication
1098:History of telecommunication
530:History of telecommunication
161:The Telecommunication Portal
7:
6377:Telecommunication education
4808:Telecommunications in Asia
3847:Alexander Stepanovich Popov
2519:Personal Handy-phone System
922:DBS satellite dishes (from
750:Telecommunications in India
710:Submarine Telegraph Company
480:Waveguide (radio frequency)
10:
7254:
6848:Free textbooks and manuals
6659:Telecommunications systems
6637:Telecommunication services
6516:Interstellar communication
6450:Telecommunication industry
3547:Telecommunications history
1759:Naomi ("Joan") Melwit and
575:Distant Early Warning Line
65:automated editing software
40:Portal maintenance status:
6978:Discover Knowledge using
6593:Telecommunications policy
6549:Mobile telecommunications
6439:Telecommunications images
6200:
6127:
6006:
5983:
5902:
5831:Saint Pierre and Miquelon
5749:
5623:
5569:
5521:
5483:
5220:
5152:
5111:
5071:
4813:
4697:
4672:
4391:
4313:
4260:
4202:
4164:Public Switched Telephone
4124:
4088:
4045:
3986:
3976:telecommunication circuit
3971:data transmission circuit
3932:Fiber-optic communication
3915:
3682:Francis Blake (telephone)
3629:
3618:
3475:Optical telecommunication
3319:
3275:
2953:. He also co-founded the
2793:History of videotelephony
2601:History of videotelephony
2524:History of videotelephony
2146:History of videotelephony
2100:History of videotelephony
2036:who invented the Audion (
2002:History of videotelephony
1954:The 1969 AT&T Mod II
1934:History of videotelephony
1499:Reginald Fessenden, the "
1341:History of videotelephony
1264:History of videotelephony
1002:History of videotelephony
817:Musée des Arts et Métiers
814:telephone of 1912 at the
765:Fiber-optic communication
635:History of videotelephony
464:List of selected articles
18:Portal:Telecommunications
6968:Dictionary and thesaurus
6908:Collection of quotations
6787:Telecommunications stubs
6681:Telecommunication theory
6527:Telecommunications lists
6472:Communication interfaces
6066:Northern Mariana Islands
5851:Turks and Caicos Islands
4873:East Timor (Timor-Leste)
4439:Central African Republic
4075:Orbital angular-momentum
3510:Satellite communications
3349:Communications satellite
2689:History of the telephone
2666:History of the telephone
2578:History of the telephone
2497:History of the telephone
2447:History of the telephone
2362:History of the telephone
2357:Centennial Issue of 1976
2334:History of the telephone
2311:History of the telephone
2288:History of the telephone
2242:History of the telephone
2212:History of the telephone
2066:History of the telephone
2022:The first commercial AM
1881:Guglielmo Marconi (from
1838:History of the telephone
1616:History of the telephone
1586:History of the telephone
1533:History of the telephone
1526:A 19th century acoustic
1414:History of the telephone
1151:History of the telephone
971:History of the telephone
823:History of the telephone
505:Data Encryption Standard
6538:Military communications
6300:Aviation communications
6031:Cocos (Keeling) Islands
5134:Cocos (Keeling) Islands
3949:Molecular communication
3772:Gardiner Greene Hubbard
3597:Undersea telegraph line
3339:Cable protection system
2770:History of broadcasting
2551:History of broadcasting
2474:History of broadcasting
2416:History of broadcasting
2265:History of broadcasting
2181:History of broadcasting
2123:History of broadcasting
1911:History of broadcasting
1884:History of broadcasting
1792:History of broadcasting
1766:History of broadcasting
1739:History of broadcasting
1506:History of broadcasting
1330:Swedish Prime Minister
1310:History of broadcasting
1048:History of broadcasting
755:Digital subscriber line
515:History of the Internet
7192:
7174:
7156:
7138:
7120:
7102:
7084:
7066:
7048:
7030:
7012:
6994:
6958:
6938:
6918:
6898:
6878:
6858:
6838:
6818:
6571:Optical communications
6251:
5781:British Virgin Islands
5263:Bosnia and Herzegovina
4096:Communication protocol
3877:Charles Sumner Tainter
3697:Walter Houser Brattain
3642:Edwin Howard Armstrong
3448:Information revolution
3085:
2886:
1251:printed circuit boards
650:Bell Telephone Company
570:Microwave transmission
485:Electrical engineering
400:
296:Nobel Prize in Physics
284:wireless communication
245:communication sessions
237:communication channels
187:
176:Raisting Earth Station
7191:
7173:
7155:
7137:
7119:
7101:
7083:
7065:
7054:Current events portal
7047:
7029:
7011:
6993:
6957:
6937:
6917:
6897:
6877:
6857:
6837:
6828:Free media repository
6817:
6384:End-to-end encryption
6249:
6009:and other territories
5721:Saint Kitts and Nevis
4599:São Tomé and Príncipe
4459:Republic of the Congo
4070:Polarization-division
3797:Narinder Singh Kapany
3762:Erna Schneider Hoover
3687:Jagadish Chandra Bose
3667:Alexander Graham Bell
3396:online video platform
3084:
2906:Alexander Graham Bell
2885:
2860:Selected biography -
2716:History of television
2709:Color bars used in a
2471:November, 1916 (from
2438:Alexander Graham Bell
2389:History of television
2087:AT&T Picturephone
1815:History of television
1639:History of television
1556:History of television
1448:History of television
1364:History of television
1287:History of television
1124:History of television
1071:History of television
948:History of television
925:History of television
902:History of television
853:History of television
685:History of television
426:two-way communication
394:
318:, inventors of radio
316:Alexander Graham Bell
170:
6928:Free-content library
6805:Wikimedia Foundation
6798:Associated Wikimedia
5048:United Arab Emirates
3907:Vladimir K. Zworykin
3867:Almon Brown Strowger
3837:Charles Grafton Page
3495:Prepaid mobile phone
3423:Electrical telegraph
3031:Vladimir K. Zworykin
3026:Paul Gottlieb Nipkow
2957:(AT&T) in 1885.
2738:John Ambrose Fleming
2176:1908 Summer Olympics
1171:A replica of one of
730:300-page iPhone bill
585:Frequency modulation
328:Vladimir K. Zworykin
288:radio communications
221:semaphore telegraphs
7198:WikiProject Portals
7000:List of all portals
6948:Free learning tools
6868:Free knowledge base
6344:Computer networking
5736:Trinidad and Tobago
5631:Antigua and Barbuda
5484:States with limited
5075:limited recognition
4674:States with limited
3857:Johann Philipp Reis
3612:Wireless revolution
3574:The Telephone Cases
3438:Hydraulic telegraph
2833:Start a new article
2032:, built in 1914 by
1119:Manfred von Ardenne
595:General Post Office
540:Transmission medium
373:Selected article -
294:, who won the 1909
67:. Learn how to
7238:Telecommunications
7233:Technology portals
7211:Purge server cache
7193:
7175:
7157:
7139:
7121:
7108:Mathematics portal
7103:
7085:
7067:
7049:
7031:
7013:
6995:
6959:
6939:
6919:
6899:
6879:
6859:
6839:
6819:
6267:Telecommunications
6252:
5671:Dominican Republic
4060:Frequency-division
4037:Telephone exchange
3902:Charles Wheatstone
3832:Jun-ichi Nishizawa
3807:Innocenzo Manzetti
3742:Reginald Fessenden
3480:Optical telegraphy
3313:Telecommunications
3102:joke of the mornin
3086:
3046:Ronald Hugh Barker
2887:
2847:Expand this portal
2621:In the 1920s, the
1906:Broadcasting House
1472:ticker machine by
1093:Rees's Cyclopaedia
720:Inverted-F antenna
660:Radio broadcasting
655:Cox Communications
565:Telephone exchange
495:Data communication
401:
300:Charles Wheatstone
209:transmission media
188:
7212:
7162:Technology portal
6888:Free-content news
6355:Data transmission
6256:
6235:
6234:
6207:other territories
6089:
6088:
6081:Wallis and Futuna
6026:Clipperton Island
5984:Associated states
5864:
5863:
5753:other territories
5585:
5584:
5180:
5179:
5117:other territories
4775:
4774:
4701:other territories
4474:Equatorial Guinea
4351:
4350:
4111:Store and forward
4106:Data transmission
4020:Network switching
3966:Transmission line
3812:Guglielmo Marconi
3777:Internet pioneers
3647:Mohamed M. Atalla
3607:Whistled language
3092:The Vision of God
3073:
3062:
3054:
3053:
2996:Guglielmo Marconi
2947:Canadian-American
2870:
2854:
2853:
2436:Actor portraying
2237:carbon microphone
2178:in London. (from
2096:
2030:radio transmitter
1989:and published in
1987:George du Maurier
1260:
1216:Texas Instruments
998:
792:
778:
777:
760:Fiber-optic cable
675:Carbon microphone
444:Videoconferencing
424:for simultaneous
410:videoconferencing
383:
292:Guglielmo Marconi
251:, the blowing of
192:Telecommunication
76:
75:
53:have been checked
45:
16:(Redirected from
7245:
7210:
7200:
7182:
7164:
7146:
7128:
7110:
7092:
7082:
7074:
7072:Geography portal
7064:
7056:
7046:
7038:
7036:Biography portal
7028:
7020:
7002:
6966:
6946:
6926:
6906:
6886:
6866:
6846:
6826:
6785:
6774:
6763:
6752:
6741:
6730:
6719:
6703:Teleconferencing
6701:
6690:
6679:
6668:
6657:
6646:
6635:
6624:
6613:
6602:
6591:
6580:
6569:
6558:
6547:
6536:
6525:
6514:
6503:
6492:
6481:
6470:
6459:
6448:
6437:
6426:
6415:
6404:
6393:
6375:
6364:
6353:
6342:
6331:
6320:
6309:
6298:
6287:
6276:
6265:
6254:
6227:
6215:Falkland Islands
6129:Sovereign states
6116:
6109:
6102:
6093:
6092:
6071:Pitcairn Islands
6041:French Polynesia
6021:Christmas Island
5950:Papua New Guinea
5930:Marshall Islands
5903:Sovereign states
5891:
5884:
5877:
5868:
5867:
5821:Saint Barthélemy
5751:Dependencies and
5624:Sovereign states
5612:
5605:
5598:
5589:
5588:
5522:Dependencies and
5221:Sovereign states
5207:
5200:
5193:
5184:
5183:
5170:
5160:
5159:
5129:Christmas Island
4815:Sovereign states
4802:
4795:
4788:
4779:
4778:
4762:
4761:(United Kingdom)
4757:Tristan da Cunha
4753:Ascension Island
4745:
4732:
4723:
4699:Dependencies and
4392:Sovereign states
4380:
4373:
4366:
4357:
4356:
4341:
4340:
4331:
4330:
4321:
4320:
4204:Notable networks
4194:Wireless network
4134:Cellular network
4126:Types of network
4101:Computer network
3988:Network topology
3897:Thomas A. Watson
3752:Oliver Heaviside
3737:Philo Farnsworth
3692:Charles Bourseul
3652:John Logie Baird
3624:
3359:Data compression
3354:Computer network
3306:
3299:
3292:
3283:
3282:
3263:
3262:
3251:
3250:
3249:
3239:
3238:
3227:
3226:
3215:
3214:
3213:
3203:
3202:
3191:
3190:
3179:
3178:
3154:started with a "
3140:Windows 3.1
3105:
3076:
3074:
3072:
3067:
3061:(auto-generated)
3060:
3041:Philo Farnsworth
3036:John Logie Baird
3021:Charles Bourseul
2986:
2980:
2979:
2940:
2939:
2936:
2935:
2932:
2929:
2926:
2923:
2920:
2917:
2898:
2895:
2873:
2871:
2869:
2864:
2827:Article requests
2816:
2809:
2808:
2789:
2788:
2782:
2762:
2761:
2755:
2743:History of radio
2735:
2734:
2728:
2708:
2707:
2701:
2685:
2684:
2678:
2655:
2654:
2648:
2636:History of radio
2633:receiver. (from
2620:
2619:
2613:
2597:
2596:
2590:
2571:1896 Telephone (
2570:
2569:
2563:
2543:
2542:
2536:
2516:
2515:
2509:
2493:
2492:
2486:
2466:
2465:
2459:
2435:
2434:
2428:
2408:
2407:
2401:
2381:
2380:
2374:
2353:
2352:
2346:
2330:
2329:
2323:
2307:
2306:
2300:
2284:
2283:
2277:
2261:
2260:
2254:
2231:
2230:
2224:
2200:
2199:
2193:
2165:
2164:
2158:
2142:
2141:
2135:
2119:
2118:
2112:
2090:
2085:
2084:
2078:
2062:
2061:
2055:
2043:History of radio
2040:) in 1906 (from
2021:
2020:
2014:
1980:
1979:
1973:
1953:
1952:
1946:
1930:
1929:
1923:
1903:
1902:
1896:
1880:
1879:
1873:
1857:
1856:
1850:
1834:
1833:
1827:
1811:
1810:
1804:
1785:
1784:
1778:
1758:
1757:
1751:
1727:
1726:
1720:
1708:History of radio
1704:
1703:
1697:
1685:History of radio
1681:
1680:
1674:
1662:History of radio
1658:
1657:
1651:
1635:
1634:
1628:
1611:water microphone
1605:
1604:
1598:
1575:
1574:
1568:
1552:
1551:
1545:
1525:
1524:
1518:
1498:
1497:
1491:
1467:
1466:
1460:
1433:
1432:
1426:
1410:
1409:
1403:
1391:History of radio
1383:
1382:
1376:
1360:
1359:
1353:
1329:
1328:
1322:
1306:
1305:
1299:
1283:
1282:
1276:
1254:
1248:
1247:
1241:
1229:History of radio
1224:transistor radio
1209:
1208:
1202:
1187:, Germany (from
1179:towers (optical
1170:
1169:
1163:
1143:
1142:
1136:
1117:
1116:
1110:
1090:
1089:
1083:
1067:
1066:
1060:
1044:
1043:
1037:
1025:History of radio
1021:
1020:
1014:
992:
990:
989:
983:
967:
966:
960:
944:
943:
937:
921:
920:
914:
895:
894:
888:
876:History of radio
872:
871:
865:
842:
841:
835:
809:
808:
802:
788:
705:Needle telegraph
690:Cathode-ray tube
550:Packet switching
465:
459:
458:
416:) is the use of
386:
384:
382:
377:
367:
365:
336:Philo Farnsworth
332:John Logie Baird
72:
43:
42:
35:
28:
21:
7253:
7252:
7248:
7247:
7246:
7244:
7243:
7242:
7218:
7217:
7216:
7206:
7201:
7196:
7194:
7183:
7178:
7176:
7165:
7160:
7158:
7147:
7142:
7140:
7129:
7124:
7122:
7111:
7106:
7104:
7093:
7088:
7086:
7080:
7075:
7070:
7068:
7062:
7057:
7052:
7050:
7044:
7039:
7034:
7032:
7026:
7021:
7018:The arts portal
7016:
7014:
7003:
6998:
6996:
6984:
6983:
6974:
6973:
6972:
6969:
6967:
6962:
6960:
6949:
6947:
6942:
6940:
6929:
6927:
6922:
6920:
6909:
6907:
6902:
6900:
6889:
6887:
6882:
6880:
6869:
6867:
6862:
6860:
6849:
6847:
6842:
6840:
6829:
6827:
6822:
6820:
6800:
6795:
6794:
6793:
6792:
6791:
6790:
6789:
6782:
6779:
6778:
6771:
6768:
6767:
6760:
6757:
6756:
6749:
6746:
6745:
6738:
6735:
6734:
6727:
6724:
6723:
6716:
6713:
6712:
6706:
6705:
6698:
6695:
6694:
6687:
6684:
6683:
6676:
6673:
6672:
6665:
6662:
6661:
6654:
6651:
6650:
6643:
6640:
6639:
6632:
6629:
6628:
6621:
6618:
6617:
6610:
6607:
6606:
6599:
6596:
6595:
6588:
6585:
6584:
6577:
6574:
6573:
6566:
6563:
6562:
6555:
6552:
6551:
6544:
6541:
6540:
6533:
6530:
6529:
6522:
6519:
6518:
6511:
6508:
6507:
6500:
6497:
6496:
6489:
6486:
6485:
6478:
6475:
6474:
6467:
6464:
6463:
6456:
6453:
6452:
6445:
6442:
6441:
6434:
6431:
6430:
6423:
6420:
6419:
6412:
6409:
6408:
6401:
6398:
6397:
6390:
6387:
6386:
6380:
6379:
6372:
6369:
6368:
6361:
6358:
6357:
6350:
6347:
6346:
6339:
6336:
6335:
6328:
6325:
6324:
6317:
6314:
6313:
6306:
6303:
6302:
6295:
6292:
6291:
6284:
6281:
6280:
6273:
6269:
6262:
6257:
6250:Category puzzle
6243:
6238:
6237:
6236:
6231:
6225:
6208:
6206:
6196:
6123:
6120:
6090:
6085:
6008:
6002:
5985:
5979:
5960:Solomon Islands
5898:
5895:
5865:
5860:
5754:
5752:
5745:
5619:
5616:
5586:
5581:
5565:
5523:
5517:
5503:Northern Cyprus
5485:
5479:
5395:North Macedonia
5216:
5211:
5181:
5176:
5148:
5116:
5107:
5088:Northern Cyprus
5074:
5067:
4809:
4806:
4776:
4771:
4770:
4760:
4743:
4730:
4721:
4702:
4700:
4693:
4677:
4675:
4668:
4387:
4384:
4353:
4352:
4347:
4309:
4256:
4198:
4120:
4084:
4041:
3990:
3982:
3918:
3911:
3817:Robert Metcalfe
3677:Tim Berners-Lee
3625:
3616:
3443:Information Age
3315:
3310:
3278:
3272:
3271:
3270:
3269:
3257:
3247:
3245:
3233:
3221:
3211:
3209:
3197:
3185:
3173:
3168:
3166:Related portals
3163:
3103:
3078:
3068:
3064:
3056:
3055:
3050:
2987:
2984:
2974:Full article...
2914:
2910:
2902:
2901:
2900:
2899:
2896:
2889:
2888:
2875:
2865:
2861:
2856:
2855:
2850:
2817:
2806:
2801:
2800:
2797:
2786:
2785:
2783:
2774:
2759:
2758:
2756:
2747:
2732:
2731:
2729:
2720:
2705:
2704:
2702:
2693:
2682:
2681:
2679:
2670:
2663:in 1876. (from
2652:
2651:
2649:
2640:
2617:
2616:
2614:
2605:
2594:
2593:
2591:
2582:
2567:
2566:
2564:
2555:
2540:
2539:
2537:
2528:
2513:
2512:
2510:
2501:
2490:
2489:
2487:
2478:
2463:
2462:
2460:
2451:
2432:
2431:
2429:
2420:
2411:Marconi Company
2405:
2404:
2402:
2393:
2378:
2377:
2375:
2366:
2358:
2356:
2350:
2349:
2347:
2338:
2327:
2326:
2324:
2315:
2304:
2303:
2301:
2292:
2281:
2280:
2278:
2269:
2258:
2257:
2255:
2246:
2228:
2227:
2225:
2216:
2205:telephone, the
2197:
2196:
2194:
2185:
2162:
2161:
2159:
2150:
2139:
2138:
2136:
2127:
2116:
2115:
2113:
2104:
2082:
2081:
2079:
2070:
2059:
2058:
2056:
2047:
2018:
2017:
2015:
2006:
1977:
1976:
1974:
1965:
1950:
1949:
1947:
1938:
1927:
1926:
1924:
1915:
1900:
1899:
1897:
1888:
1877:
1876:
1874:
1865:
1854:
1853:
1851:
1842:
1831:
1830:
1828:
1819:
1808:
1807:
1805:
1796:
1787:Ferdinand Braun
1782:
1781:
1779:
1770:
1755:
1754:
1752:
1743:
1734:Lissajous curve
1724:
1723:
1721:
1712:
1701:
1700:
1698:
1689:
1678:
1677:
1675:
1666:
1655:
1654:
1652:
1643:
1632:
1631:
1629:
1620:
1602:
1601:
1599:
1590:
1572:
1571:
1569:
1560:
1549:
1548:
1546:
1537:
1522:
1521:
1519:
1510:
1495:
1494:
1492:
1483:
1464:
1463:
1461:
1452:
1430:
1429:
1427:
1418:
1407:
1406:
1404:
1395:
1380:
1379:
1377:
1368:
1357:
1356:
1354:
1345:
1326:
1325:
1323:
1314:
1303:
1302:
1300:
1291:
1280:
1279:
1277:
1268:
1245:
1244:
1242:
1233:
1226:in 1954. (from
1220:NPN transistors
1206:
1205:
1203:
1194:
1167:
1166:
1164:
1155:
1140:
1139:
1137:
1128:
1114:
1113:
1111:
1102:
1087:
1086:
1084:
1075:
1064:
1063:
1061:
1052:
1041:
1040:
1038:
1029:
1018:
1017:
1015:
1006:
987:
986:
984:
975:
964:
963:
961:
952:
941:
940:
938:
929:
918:
917:
915:
906:
897:Ferdinand Braun
892:
891:
889:
880:
869:
868:
866:
857:
839:
838:
836:
827:
820:in Paris (from
806:
805:
803:
793:
785:
780:
779:
774:
695:AI Mk. IV radar
645:Satellite radio
640:Satellite phone
580:FM broadcasting
555:Streaming media
475:Antenna (radio)
466:
463:
453:Full article...
408:(also known as
388:
378:
374:
368:
359:
357:
352:Full article...
320:Edwin Armstrong
249:coded drumbeats
205:pneumatic tubes
164:
162:
156:
155:
80:
77:
58:
38:
23:
22:
15:
12:
11:
5:
7251:
7241:
7240:
7235:
7230:
7205:
7204:
7202:
7195:
7186:
7184:
7177:
7168:
7166:
7159:
7150:
7148:
7144:Society portal
7141:
7132:
7130:
7126:Science portal
7123:
7114:
7112:
7105:
7096:
7094:
7090:History portal
7087:
7078:
7076:
7069:
7060:
7058:
7051:
7042:
7040:
7033:
7024:
7022:
7015:
7006:
7004:
6997:
6988:
6985:
6976:
6975:
6971:
6970:
6961:
6952:
6950:
6941:
6932:
6930:
6921:
6912:
6910:
6901:
6892:
6890:
6881:
6872:
6870:
6861:
6852:
6850:
6841:
6832:
6830:
6821:
6812:
6809:
6803:The following
6801:
6799:
6796:
6781:
6780:
6770:
6769:
6759:
6758:
6748:
6747:
6737:
6736:
6726:
6725:
6715:
6714:
6708:
6707:
6697:
6696:
6686:
6685:
6675:
6674:
6664:
6663:
6653:
6652:
6642:
6641:
6631:
6630:
6620:
6619:
6609:
6608:
6598:
6597:
6587:
6586:
6576:
6575:
6565:
6564:
6560:Network access
6554:
6553:
6543:
6542:
6532:
6531:
6521:
6520:
6510:
6509:
6499:
6498:
6488:
6487:
6477:
6476:
6466:
6465:
6455:
6454:
6444:
6443:
6433:
6432:
6422:
6421:
6411:
6410:
6400:
6399:
6389:
6388:
6382:
6381:
6371:
6370:
6360:
6359:
6349:
6348:
6338:
6337:
6327:
6326:
6316:
6315:
6305:
6304:
6294:
6293:
6283:
6282:
6272:
6271:
6270:
6261:
6260:
6258:
6253:
6244:
6242:
6239:
6233:
6232:
6230:
6229:
6222:
6217:
6211:
6209:
6201:
6198:
6197:
6195:
6194:
6189:
6184:
6179:
6174:
6169:
6164:
6159:
6154:
6149:
6144:
6139:
6133:
6131:
6125:
6124:
6119:
6118:
6111:
6104:
6096:
6087:
6086:
6084:
6083:
6078:
6073:
6068:
6063:
6061:Norfolk Island
6058:
6053:
6048:
6043:
6038:
6033:
6028:
6023:
6018:
6016:American Samoa
6012:
6010:
6004:
6003:
6001:
6000:
5995:
5989:
5987:
5986:of New Zealand
5981:
5980:
5978:
5977:
5972:
5967:
5962:
5957:
5952:
5947:
5942:
5937:
5932:
5927:
5922:
5917:
5912:
5906:
5904:
5900:
5899:
5894:
5893:
5886:
5879:
5871:
5862:
5861:
5859:
5858:
5853:
5848:
5843:
5841:Sint Eustatius
5838:
5833:
5828:
5823:
5818:
5813:
5808:
5803:
5798:
5793:
5788:
5786:Cayman Islands
5783:
5778:
5773:
5768:
5763:
5757:
5755:
5750:
5747:
5746:
5744:
5743:
5738:
5733:
5728:
5723:
5718:
5713:
5708:
5703:
5698:
5693:
5688:
5683:
5678:
5673:
5668:
5663:
5658:
5653:
5648:
5643:
5638:
5633:
5627:
5625:
5621:
5620:
5615:
5614:
5607:
5600:
5592:
5583:
5582:
5580:
5579:
5577:European Union
5573:
5571:
5570:Other entities
5567:
5566:
5564:
5563:
5558:
5553:
5548:
5543:
5538:
5533:
5527:
5525:
5524:other entities
5519:
5518:
5516:
5515:
5510:
5505:
5500:
5495:
5489:
5487:
5481:
5480:
5478:
5477:
5472:
5470:United Kingdom
5467:
5462:
5457:
5452:
5447:
5442:
5437:
5432:
5427:
5422:
5417:
5412:
5407:
5402:
5397:
5392:
5387:
5382:
5377:
5372:
5367:
5362:
5357:
5352:
5347:
5342:
5337:
5335:
5330:
5325:
5320:
5315:
5310:
5305:
5300:
5295:
5290:
5285:
5283:Czech Republic
5280:
5275:
5270:
5265:
5260:
5255:
5250:
5245:
5240:
5235:
5230:
5224:
5222:
5218:
5217:
5210:
5209:
5202:
5195:
5187:
5178:
5177:
5175:
5174:
5164:
5153:
5150:
5149:
5147:
5146:
5141:
5136:
5131:
5126:
5120:
5118:
5109:
5108:
5106:
5105:
5100:
5095:
5090:
5085:
5079:
5077:
5069:
5068:
5066:
5065:
5060:
5055:
5050:
5045:
5040:
5035:
5030:
5025:
5020:
5015:
5010:
5005:
5000:
4995:
4990:
4985:
4980:
4975:
4970:
4965:
4960:
4955:
4950:
4945:
4940:
4935:
4930:
4925:
4920:
4915:
4910:
4905:
4900:
4895:
4890:
4885:
4880:
4875:
4870:
4865:
4860:
4855:
4850:
4845:
4840:
4835:
4830:
4825:
4819:
4817:
4811:
4810:
4805:
4804:
4797:
4790:
4782:
4773:
4772:
4769:
4768:
4766:Western Sahara
4763:
4746:
4733:
4724:
4710:Canary Islands
4706:
4705:
4703:
4698:
4695:
4694:
4692:
4691:
4686:
4680:
4678:
4673:
4670:
4669:
4667:
4666:
4661:
4656:
4651:
4646:
4641:
4636:
4631:
4626:
4621:
4616:
4611:
4606:
4601:
4596:
4591:
4586:
4581:
4576:
4571:
4566:
4561:
4556:
4551:
4546:
4541:
4536:
4531:
4526:
4521:
4516:
4511:
4506:
4501:
4496:
4491:
4486:
4481:
4476:
4471:
4466:
4461:
4456:
4451:
4446:
4441:
4436:
4431:
4426:
4421:
4416:
4411:
4406:
4401:
4395:
4393:
4389:
4388:
4383:
4382:
4375:
4368:
4360:
4354:
4349:
4348:
4346:
4345:
4335:
4325:
4314:
4311:
4310:
4308:
4307:
4302:
4297:
4292:
4287:
4286:
4285:
4280:
4270:
4264:
4262:
4258:
4257:
4255:
4254:
4249:
4244:
4239:
4234:
4229:
4224:
4219:
4214:
4208:
4206:
4200:
4199:
4197:
4196:
4191:
4186:
4181:
4176:
4171:
4166:
4161:
4156:
4151:
4146:
4141:
4136:
4130:
4128:
4122:
4121:
4119:
4118:
4113:
4108:
4103:
4098:
4092:
4090:
4086:
4085:
4083:
4082:
4077:
4072:
4067:
4062:
4057:
4055:Space-division
4051:
4049:
4043:
4042:
4040:
4039:
4034:
4033:
4032:
4027:
4017:
4016:
4015:
4005:
4000:
3994:
3992:
3984:
3983:
3981:
3980:
3979:
3978:
3973:
3963:
3962:
3961:
3951:
3946:
3941:
3940:
3939:
3929:
3923:
3921:
3913:
3912:
3910:
3909:
3904:
3899:
3894:
3889:
3887:Camille Tissot
3884:
3879:
3874:
3869:
3864:
3862:Claude Shannon
3859:
3854:
3852:Tivadar Puskás
3849:
3844:
3839:
3834:
3829:
3824:
3822:Antonio Meucci
3819:
3814:
3809:
3804:
3799:
3794:
3792:Charles K. Kao
3789:
3784:
3779:
3774:
3769:
3767:Harold Hopkins
3764:
3759:
3754:
3749:
3744:
3739:
3734:
3729:
3724:
3719:
3714:
3709:
3704:
3699:
3694:
3689:
3684:
3679:
3674:
3672:Emile Berliner
3669:
3664:
3659:
3654:
3649:
3644:
3639:
3633:
3631:
3627:
3626:
3619:
3617:
3615:
3614:
3609:
3604:
3602:Videotelephony
3599:
3594:
3593:
3592:
3587:
3577:
3570:
3565:
3559:
3554:
3549:
3544:
3539:
3538:
3537:
3532:
3527:
3517:
3512:
3507:
3505:Radiotelephone
3502:
3497:
3492:
3487:
3482:
3477:
3472:
3471:
3470:
3460:
3455:
3450:
3445:
3440:
3435:
3430:
3425:
3420:
3415:
3410:
3409:
3408:
3403:
3398:
3393:
3391:Internet video
3383:
3382:
3381:
3376:
3371:
3366:
3356:
3351:
3346:
3341:
3336:
3331:
3325:
3323:
3317:
3316:
3309:
3308:
3301:
3294:
3286:
3280:
3279:
3277:
3274:
3273:
3268:
3267:
3255:
3243:
3231:
3219:
3207:
3195:
3183:
3169:
3167:
3164:
3162:
3161:
3148:
3135:
3122:
3113:
3096:
3079:
3077:
3070:load new batch
3057:
3052:
3051:
3049:
3048:
3043:
3038:
3033:
3028:
3023:
3018:
3016:Antonio Meucci
3013:
3008:
3003:
2998:
2992:
2989:
2988:
2983:
2978:
2943:Alexander Bell
2891:
2890:
2880:
2879:
2878:
2877:
2876:
2874:
2858:
2857:
2852:
2851:
2849:
2848:
2839:
2820:
2818:
2807:
2805:
2802:
2799:
2798:
2784:
2777:
2775:
2757:
2750:
2748:
2740:in 1897 (from
2730:
2723:
2721:
2703:
2696:
2694:
2680:
2673:
2671:
2657:Tivadar Puskás
2650:
2643:
2641:
2615:
2608:
2606:
2592:
2585:
2583:
2565:
2558:
2556:
2538:
2531:
2529:
2511:
2504:
2502:
2488:
2481:
2479:
2461:
2454:
2452:
2430:
2423:
2421:
2403:
2396:
2394:
2376:
2369:
2367:
2354:
2348:
2341:
2339:
2325:
2318:
2316:
2302:
2295:
2293:
2279:
2272:
2270:
2256:
2249:
2247:
2226:
2219:
2217:
2195:
2188:
2186:
2160:
2153:
2151:
2137:
2130:
2128:
2114:
2107:
2105:
2080:
2073:
2071:
2057:
2050:
2048:
2016:
2009:
2007:
1997:speaking tubes
1975:
1968:
1966:
1948:
1941:
1939:
1925:
1918:
1916:
1898:
1891:
1889:
1875:
1868:
1866:
1852:
1845:
1843:
1829:
1822:
1820:
1806:
1799:
1797:
1780:
1773:
1771:
1753:
1746:
1744:
1722:
1715:
1713:
1699:
1692:
1690:
1676:
1669:
1667:
1653:
1646:
1644:
1630:
1623:
1621:
1600:
1593:
1591:
1581:Reis telephone
1570:
1563:
1561:
1547:
1540:
1538:
1520:
1513:
1511:
1493:
1486:
1484:
1462:
1455:
1453:
1428:
1421:
1419:
1405:
1398:
1396:
1378:
1371:
1369:
1355:
1348:
1346:
1336:Lennart Hyland
1324:
1317:
1315:
1301:
1294:
1292:
1278:
1271:
1269:
1243:
1236:
1234:
1204:
1197:
1195:
1165:
1158:
1156:
1138:
1131:
1129:
1121:in 1933 (from
1112:
1105:
1103:
1085:
1078:
1076:
1062:
1055:
1053:
1039:
1032:
1030:
1016:
1009:
1007:
985:
978:
976:
962:
955:
953:
939:
932:
930:
916:
909:
907:
890:
883:
881:
867:
860:
858:
837:
830:
828:
804:
797:
794:
787:
786:
784:
783:General images
781:
776:
775:
773:
772:
767:
762:
757:
752:
747:
742:
737:
732:
727:
722:
717:
712:
707:
702:
697:
692:
687:
682:
677:
672:
667:
662:
657:
652:
647:
642:
637:
632:
627:
622:
617:
612:
607:
602:
597:
592:
587:
582:
577:
572:
567:
562:
557:
552:
547:
542:
537:
532:
527:
522:
517:
512:
507:
502:
497:
492:
487:
482:
477:
471:
468:
467:
462:
457:
405:Videotelephony
399:system in 2007
389:
387:
371:
370:
369:
358:
312:Antonio Meucci
227:, and optical
165:
163:
160:
158:
157:
154:
153:
148:
143:
138:
133:
128:
123:
118:
113:
108:
103:
98:
93:
88:
82:
81:
78:
74:
73:
57:
56:
48:This portal's
36:
26:
9:
6:
4:
3:
2:
7250:
7239:
7236:
7234:
7231:
7229:
7226:
7225:
7223:
7215:
7214:
7213:
7203:
7199:
7190:
7185:
7181:
7180:Random portal
7172:
7167:
7163:
7154:
7149:
7145:
7136:
7131:
7127:
7118:
7113:
7109:
7100:
7095:
7091:
7077:
7073:
7059:
7055:
7041:
7037:
7023:
7019:
7010:
7005:
7001:
6992:
6987:
6982:
6981:
6965:
6956:
6951:
6945:
6936:
6931:
6925:
6916:
6911:
6905:
6896:
6891:
6885:
6876:
6871:
6865:
6856:
6851:
6845:
6836:
6831:
6825:
6816:
6811:
6808:
6806:
6788:
6784:
6777:
6773:
6766:
6762:
6755:
6751:
6744:
6740:
6733:
6729:
6722:
6718:
6711:
6710:Teledildonics
6704:
6700:
6693:
6689:
6682:
6678:
6671:
6667:
6660:
6656:
6649:
6645:
6638:
6634:
6627:
6623:
6616:
6612:
6605:
6601:
6594:
6590:
6583:
6579:
6572:
6568:
6561:
6557:
6550:
6546:
6539:
6535:
6528:
6524:
6517:
6513:
6506:
6502:
6495:
6491:
6484:
6480:
6473:
6469:
6462:
6458:
6451:
6447:
6440:
6436:
6429:
6425:
6418:
6414:
6407:
6403:
6396:
6392:
6385:
6378:
6374:
6367:
6363:
6356:
6352:
6345:
6341:
6334:
6330:
6323:
6319:
6312:
6308:
6301:
6297:
6290:
6286:
6279:
6275:
6268:
6264:
6248:
6241:Subcategories
6228:
6223:
6221:
6220:French Guiana
6218:
6216:
6213:
6212:
6210:
6204:
6199:
6193:
6190:
6188:
6185:
6183:
6180:
6178:
6175:
6173:
6170:
6168:
6165:
6163:
6160:
6158:
6155:
6153:
6150:
6148:
6145:
6143:
6140:
6138:
6135:
6134:
6132:
6130:
6126:
6117:
6112:
6110:
6105:
6103:
6098:
6097:
6094:
6082:
6079:
6077:
6074:
6072:
6069:
6067:
6064:
6062:
6059:
6057:
6056:New Caledonia
6054:
6052:
6049:
6047:
6044:
6042:
6039:
6037:
6036:Easter Island
6034:
6032:
6029:
6027:
6024:
6022:
6019:
6017:
6014:
6013:
6011:
6005:
5999:
5996:
5994:
5991:
5990:
5988:
5982:
5976:
5973:
5971:
5968:
5966:
5963:
5961:
5958:
5956:
5953:
5951:
5948:
5946:
5943:
5941:
5938:
5936:
5933:
5931:
5928:
5926:
5923:
5921:
5918:
5916:
5913:
5911:
5908:
5907:
5905:
5901:
5892:
5887:
5885:
5880:
5878:
5873:
5872:
5869:
5857:
5854:
5852:
5849:
5847:
5844:
5842:
5839:
5837:
5834:
5832:
5829:
5827:
5824:
5822:
5819:
5817:
5814:
5812:
5809:
5807:
5804:
5802:
5799:
5797:
5794:
5792:
5789:
5787:
5784:
5782:
5779:
5777:
5774:
5772:
5769:
5767:
5764:
5762:
5759:
5758:
5756:
5748:
5742:
5741:United States
5739:
5737:
5734:
5732:
5729:
5727:
5724:
5722:
5719:
5717:
5714:
5712:
5709:
5707:
5704:
5702:
5699:
5697:
5694:
5692:
5689:
5687:
5684:
5682:
5679:
5677:
5674:
5672:
5669:
5667:
5664:
5662:
5659:
5657:
5654:
5652:
5649:
5647:
5644:
5642:
5639:
5637:
5634:
5632:
5629:
5628:
5626:
5622:
5613:
5608:
5606:
5601:
5599:
5594:
5593:
5590:
5578:
5575:
5574:
5572:
5568:
5562:
5559:
5557:
5554:
5552:
5549:
5547:
5544:
5542:
5539:
5537:
5536:Faroe Islands
5534:
5532:
5529:
5528:
5526:
5520:
5514:
5511:
5509:
5508:South Ossetia
5506:
5504:
5501:
5499:
5496:
5494:
5491:
5490:
5488:
5482:
5476:
5473:
5471:
5468:
5466:
5463:
5461:
5458:
5456:
5453:
5451:
5448:
5446:
5443:
5441:
5438:
5436:
5433:
5431:
5428:
5426:
5423:
5421:
5418:
5416:
5413:
5411:
5408:
5406:
5403:
5401:
5398:
5396:
5393:
5391:
5388:
5386:
5383:
5381:
5378:
5376:
5373:
5371:
5368:
5366:
5363:
5361:
5358:
5356:
5355:Liechtenstein
5353:
5351:
5348:
5346:
5343:
5341:
5338:
5336:
5334:
5331:
5329:
5326:
5324:
5321:
5319:
5316:
5314:
5311:
5309:
5306:
5304:
5301:
5299:
5296:
5294:
5291:
5289:
5286:
5284:
5281:
5279:
5276:
5274:
5271:
5269:
5266:
5264:
5261:
5259:
5256:
5254:
5251:
5249:
5246:
5244:
5241:
5239:
5236:
5234:
5231:
5229:
5226:
5225:
5223:
5219:
5215:
5208:
5203:
5201:
5196:
5194:
5189:
5188:
5185:
5173:
5169:
5165:
5163:
5155:
5154:
5151:
5145:
5142:
5140:
5137:
5135:
5132:
5130:
5127:
5125:
5122:
5121:
5119:
5114:
5110:
5104:
5101:
5099:
5098:South Ossetia
5096:
5094:
5091:
5089:
5086:
5084:
5081:
5080:
5078:
5076:
5070:
5064:
5061:
5059:
5056:
5054:
5051:
5049:
5046:
5044:
5041:
5039:
5036:
5034:
5031:
5029:
5026:
5024:
5021:
5019:
5016:
5014:
5011:
5009:
5006:
5004:
5001:
4999:
4996:
4994:
4991:
4989:
4986:
4984:
4981:
4979:
4976:
4974:
4971:
4969:
4966:
4964:
4961:
4959:
4956:
4954:
4951:
4949:
4946:
4944:
4941:
4939:
4936:
4934:
4931:
4929:
4926:
4924:
4921:
4919:
4916:
4914:
4911:
4909:
4906:
4904:
4901:
4899:
4896:
4894:
4891:
4889:
4886:
4884:
4881:
4879:
4876:
4874:
4871:
4869:
4866:
4864:
4861:
4859:
4856:
4854:
4851:
4849:
4846:
4844:
4841:
4839:
4836:
4834:
4831:
4829:
4826:
4824:
4821:
4820:
4818:
4816:
4812:
4803:
4798:
4796:
4791:
4789:
4784:
4783:
4780:
4767:
4764:
4758:
4754:
4750:
4747:
4741:
4737:
4734:
4728:
4725:
4719:
4715:
4711:
4708:
4707:
4704:
4696:
4690:
4687:
4685:
4682:
4681:
4679:
4671:
4665:
4662:
4660:
4657:
4655:
4652:
4650:
4647:
4645:
4642:
4640:
4637:
4635:
4632:
4630:
4627:
4625:
4622:
4620:
4617:
4615:
4612:
4610:
4607:
4605:
4602:
4600:
4597:
4595:
4592:
4590:
4587:
4585:
4582:
4580:
4577:
4575:
4572:
4570:
4567:
4565:
4562:
4560:
4557:
4555:
4552:
4550:
4547:
4545:
4542:
4540:
4537:
4535:
4532:
4530:
4527:
4525:
4522:
4520:
4517:
4515:
4514:Guinea-Bissau
4512:
4510:
4507:
4505:
4502:
4500:
4497:
4495:
4492:
4490:
4487:
4485:
4482:
4480:
4477:
4475:
4472:
4470:
4467:
4465:
4462:
4460:
4457:
4455:
4452:
4450:
4447:
4445:
4442:
4440:
4437:
4435:
4432:
4430:
4427:
4425:
4422:
4420:
4417:
4415:
4412:
4410:
4407:
4405:
4402:
4400:
4397:
4396:
4394:
4390:
4381:
4376:
4374:
4369:
4367:
4362:
4361:
4358:
4344:
4336:
4334:
4326:
4324:
4316:
4315:
4312:
4306:
4303:
4301:
4298:
4296:
4293:
4291:
4288:
4284:
4281:
4279:
4276:
4275:
4274:
4271:
4269:
4266:
4265:
4263:
4259:
4253:
4250:
4248:
4245:
4243:
4240:
4238:
4235:
4233:
4230:
4228:
4225:
4223:
4220:
4218:
4215:
4213:
4210:
4209:
4207:
4205:
4201:
4195:
4192:
4190:
4187:
4185:
4182:
4180:
4177:
4175:
4172:
4170:
4167:
4165:
4162:
4160:
4157:
4155:
4152:
4150:
4147:
4145:
4142:
4140:
4137:
4135:
4132:
4131:
4129:
4127:
4123:
4117:
4114:
4112:
4109:
4107:
4104:
4102:
4099:
4097:
4094:
4093:
4091:
4087:
4081:
4080:Code-division
4078:
4076:
4073:
4071:
4068:
4066:
4065:Time-division
4063:
4061:
4058:
4056:
4053:
4052:
4050:
4048:
4044:
4038:
4035:
4031:
4028:
4026:
4023:
4022:
4021:
4018:
4014:
4011:
4010:
4009:
4006:
4004:
4001:
3999:
3996:
3995:
3993:
3991:and switching
3989:
3985:
3977:
3974:
3972:
3969:
3968:
3967:
3964:
3960:
3957:
3956:
3955:
3952:
3950:
3947:
3945:
3942:
3938:
3937:optical fiber
3935:
3934:
3933:
3930:
3928:
3927:Coaxial cable
3925:
3924:
3922:
3920:
3914:
3908:
3905:
3903:
3900:
3898:
3895:
3893:
3890:
3888:
3885:
3883:
3880:
3878:
3875:
3873:
3870:
3868:
3865:
3863:
3860:
3858:
3855:
3853:
3850:
3848:
3845:
3843:
3842:Radia Perlman
3840:
3838:
3835:
3833:
3830:
3828:
3825:
3823:
3820:
3818:
3815:
3813:
3810:
3808:
3805:
3803:
3800:
3798:
3795:
3793:
3790:
3788:
3785:
3783:
3780:
3778:
3775:
3773:
3770:
3768:
3765:
3763:
3760:
3758:
3755:
3753:
3750:
3748:
3745:
3743:
3740:
3738:
3735:
3733:
3732:Lee de Forest
3730:
3728:
3727:Thomas Edison
3725:
3723:
3720:
3718:
3717:Donald Davies
3715:
3713:
3710:
3708:
3707:Claude Chappe
3705:
3703:
3700:
3698:
3695:
3693:
3690:
3688:
3685:
3683:
3680:
3678:
3675:
3673:
3670:
3668:
3665:
3663:
3660:
3658:
3655:
3653:
3650:
3648:
3645:
3643:
3640:
3638:
3635:
3634:
3632:
3628:
3623:
3613:
3610:
3608:
3605:
3603:
3600:
3598:
3595:
3591:
3588:
3586:
3583:
3582:
3581:
3578:
3576:
3575:
3571:
3569:
3566:
3563:
3560:
3558:
3555:
3553:
3550:
3548:
3545:
3543:
3542:Smoke signals
3540:
3536:
3533:
3531:
3528:
3526:
3523:
3522:
3521:
3520:Semiconductor
3518:
3516:
3513:
3511:
3508:
3506:
3503:
3501:
3498:
3496:
3493:
3491:
3488:
3486:
3483:
3481:
3478:
3476:
3473:
3469:
3466:
3465:
3464:
3461:
3459:
3456:
3454:
3451:
3449:
3446:
3444:
3441:
3439:
3436:
3434:
3431:
3429:
3426:
3424:
3421:
3419:
3416:
3414:
3411:
3407:
3404:
3402:
3399:
3397:
3394:
3392:
3389:
3388:
3387:
3386:Digital media
3384:
3380:
3377:
3375:
3372:
3370:
3367:
3365:
3362:
3361:
3360:
3357:
3355:
3352:
3350:
3347:
3345:
3342:
3340:
3337:
3335:
3332:
3330:
3327:
3326:
3324:
3322:
3318:
3314:
3307:
3302:
3300:
3295:
3293:
3288:
3287:
3284:
3266:
3261:
3256:
3254:
3244:
3242:
3237:
3232:
3230:
3225:
3220:
3218:
3208:
3206:
3201:
3196:
3194:
3189:
3184:
3182:
3177:
3172:
3171:
3159:
3158:
3153:
3149:
3146:
3142:
3141:
3136:
3133:
3132:
3127:
3123:
3120:
3119:
3114:
3111:
3110:
3101:
3097:
3094:
3093:
3088:
3087:
3083:
3075:
3071:
3059:Did you know
3047:
3044:
3042:
3039:
3037:
3034:
3032:
3029:
3027:
3024:
3022:
3019:
3017:
3014:
3012:
3011:Thomas Edison
3009:
3007:
3004:
3002:
2999:
2997:
2994:
2993:
2991:
2990:
2982:
2981:
2976:
2975:
2970:
2965:
2961:
2960:Bell's father
2958:
2956:
2952:
2948:
2944:
2938:
2908:
2907:
2884:
2872:
2868:
2846:
2844:
2840:
2838:
2834:
2831:
2829:
2828:
2823:
2822:
2819:
2815:
2811:
2810:
2795:
2794:
2781:
2776:
2772:
2771:
2766:
2754:
2749:
2745:
2744:
2739:
2727:
2722:
2718:
2717:
2712:
2700:
2695:
2691:
2690:
2677:
2672:
2668:
2667:
2662:
2659:proposed the
2658:
2647:
2642:
2638:
2637:
2632:
2631:crystal radio
2628:
2624:
2612:
2607:
2603:
2602:
2589:
2584:
2580:
2579:
2574:
2562:
2557:
2553:
2552:
2547:
2535:
2530:
2526:
2525:
2520:
2508:
2503:
2499:
2498:
2485:
2480:
2476:
2475:
2470:
2458:
2453:
2449:
2448:
2443:
2439:
2427:
2422:
2418:
2417:
2412:
2400:
2395:
2391:
2390:
2385:
2373:
2368:
2364:
2363:
2345:
2340:
2336:
2335:
2322:
2317:
2313:
2312:
2299:
2294:
2290:
2289:
2276:
2271:
2267:
2266:
2253:
2248:
2244:
2243:
2238:
2235:invented the
2234:
2233:Thomas Edison
2223:
2218:
2214:
2213:
2208:
2204:
2192:
2187:
2183:
2182:
2177:
2173:
2169:
2157:
2152:
2148:
2147:
2134:
2129:
2125:
2124:
2111:
2106:
2102:
2101:
2094:
2093:Richard Diehl
2088:
2077:
2072:
2068:
2067:
2054:
2049:
2045:
2044:
2039:
2035:
2034:Lee De Forest
2031:
2028:
2025:
2013:
2008:
2004:
2003:
1998:
1994:
1993:
1988:
1984:
1972:
1967:
1963:
1962:
1957:
1945:
1940:
1936:
1935:
1922:
1917:
1913:
1912:
1907:
1895:
1890:
1886:
1885:
1872:
1867:
1863:
1862:
1849:
1844:
1840:
1839:
1826:
1821:
1817:
1816:
1803:
1798:
1794:
1793:
1788:
1777:
1772:
1768:
1767:
1762:
1750:
1745:
1741:
1740:
1735:
1731:
1719:
1714:
1710:
1709:
1696:
1691:
1687:
1686:
1673:
1668:
1664:
1663:
1650:
1645:
1641:
1640:
1627:
1622:
1618:
1617:
1612:
1608:
1597:
1592:
1588:
1587:
1582:
1578:
1567:
1562:
1558:
1557:
1544:
1539:
1535:
1534:
1529:
1517:
1512:
1508:
1507:
1502:
1490:
1485:
1481:
1480:
1475:
1474:Thomas Edison
1471:
1459:
1454:
1450:
1449:
1444:
1440:
1437:
1425:
1420:
1416:
1415:
1402:
1397:
1393:
1392:
1387:
1375:
1370:
1366:
1365:
1352:
1347:
1343:
1342:
1337:
1333:
1332:Tage Erlander
1321:
1316:
1312:
1311:
1298:
1293:
1289:
1288:
1275:
1270:
1266:
1265:
1258:
1257:Richard Diehl
1252:
1240:
1235:
1231:
1230:
1225:
1221:
1217:
1214:, which used
1213:
1201:
1196:
1192:
1191:
1186:
1182:
1178:
1174:
1173:Claude Chappe
1162:
1157:
1153:
1152:
1147:
1144:Apple iPhone
1135:
1130:
1126:
1125:
1120:
1109:
1104:
1100:
1099:
1094:
1082:
1077:
1073:
1072:
1059:
1054:
1050:
1049:
1036:
1031:
1027:
1026:
1013:
1008:
1004:
1003:
996:
995:Richard Diehl
982:
977:
973:
972:
959:
954:
950:
949:
936:
931:
927:
926:
913:
908:
904:
903:
898:
887:
882:
878:
877:
864:
859:
855:
854:
849:
845:
834:
829:
825:
824:
819:
818:
813:
801:
796:
795:
791:
771:
770:Optical fiber
768:
766:
763:
761:
758:
756:
753:
751:
748:
746:
743:
741:
738:
736:
733:
731:
728:
726:
723:
721:
718:
716:
713:
711:
708:
706:
703:
701:
698:
696:
693:
691:
688:
686:
683:
681:
678:
676:
673:
671:
668:
666:
663:
661:
658:
656:
653:
651:
648:
646:
643:
641:
638:
636:
633:
631:
628:
626:
623:
621:
618:
616:
613:
611:
608:
606:
603:
601:
598:
596:
593:
591:
588:
586:
583:
581:
578:
576:
573:
571:
568:
566:
563:
561:
558:
556:
553:
551:
548:
546:
545:Coaxial cable
543:
541:
538:
536:
533:
531:
528:
526:
523:
521:
518:
516:
513:
511:
508:
506:
503:
501:
500:Optical fiber
498:
496:
493:
491:
488:
486:
483:
481:
478:
476:
473:
472:
470:
469:
461:
460:
455:
454:
449:
445:
441:
437:
433:
429:
427:
423:
419:
415:
411:
407:
406:
398:
393:
385:
381:
366:
364:
356:
354:
353:
348:
344:
339:
337:
333:
329:
325:
324:Lee de Forest
321:
317:
313:
309:
305:
301:
297:
293:
289:
285:
281:
276:
274:
270:
266:
262:
258:
254:
250:
246:
242:
238:
234:
230:
226:
222:
218:
214:
213:smoke signals
210:
206:
202:
198:
194:
193:
185:
181:
177:
173:
172:Earth station
169:
152:
151:Random portal
149:
147:
144:
142:
139:
137:
134:
132:
129:
127:
124:
122:
119:
117:
114:
112:
109:
107:
104:
102:
99:
97:
94:
92:
89:
87:
86:Portal topics
84:
83:
70:
66:
62:
54:
51:
47:
46:
41:
37:
34:
30:
29:
19:
7208:
7207:
6977:
6802:
6483:Interference
6311:Broadcasting
6203:Dependencies
6007:Dependencies
5993:Cook Islands
5846:Sint Maarten
5826:Saint Martin
5513:Transnistria
5475:Vatican City
5113:Dependencies
5043:Turkmenistan
5008:Saudi Arabia
4749:Saint Helena
4720:
4624:South Africa
4614:Sierra Leone
4419:Burkina Faso
4047:Multiplexing
3917:Transmission
3882:Nikola Tesla
3872:Henry Sutton
3827:Samuel Morse
3757:Robert Hooke
3722:Amos Dolbear
3662:John Bardeen
3572:
3552:Telautograph
3463:Mobile phone
3418:Edholm's law
3401:social media
3334:Broadcasting
3155:
3138:
3129:
3116:
3107:
3100:North Dakota
3098:... that a "
3090:
3069:
3006:Samuel Morse
3001:Nikola Tesla
2972:
2942:
2904:
2903:
2867:show another
2866:
2842:
2841:
2825:
2824:
2804:Things to do
2791:
2768:
2741:
2714:
2711:test pattern
2687:
2664:
2634:
2626:
2599:
2576:
2549:
2545:
2522:
2495:
2472:
2468:
2445:
2414:
2387:
2360:
2332:
2309:
2286:
2263:
2240:
2210:
2179:
2144:
2121:
2098:
2092:
2086:
2064:
2041:
2000:
1990:
1959:
1956:Picturephone
1932:
1909:
1882:
1859:
1836:
1813:
1790:
1764:
1761:Norman Banks
1737:
1706:
1683:
1660:
1637:
1614:
1584:
1577:Philipp Reis
1554:
1531:
1504:
1500:
1477:
1446:
1412:
1389:
1386:Brox Sisters
1362:
1339:
1308:
1285:
1262:
1256:
1227:
1212:Regency TR-1
1188:
1149:
1122:
1096:
1092:
1069:
1046:
1023:
1000:
994:
969:
946:
923:
900:
874:
851:
847:
821:
815:
789:
510:Cryptography
451:
448:telepresence
443:
431:
413:
409:
403:
402:
397:telepresence
380:show another
379:
362:
350:
340:
304:Samuel Morse
277:
241:multiplexing
225:signal flags
196:
190:
189:
52:
39:
7228:All portals
6944:Wikiversity
6765:Teletraffic
5940:New Zealand
5816:Puerto Rico
5726:Saint Lucia
5676:El Salvador
5551:Isle of Man
5486:recognition
5455:Switzerland
5390:Netherlands
5172:Asia portal
5073:States with
4993:Philippines
4933:South Korea
4928:North Korea
4823:Afghanistan
4676:recognition
4629:South Sudan
4519:Ivory Coast
4247:NPL network
3954:Radio waves
3892:Alfred Vail
3802:Hedy Lamarr
3787:Dawon Kahng
3747:Elisha Gray
3712:Yogen Dalal
3637:Nasir Ahmed
3562:Teleprinter
3433:Heliographs
3193:Engineering
3181:Electronics
3124:... that a
2969:U.S. patent
2897: 1917
2384:Nipkow disk
2203:rotary dial
2091:(courtesy:
2027:vacuum tube
1607:Elisha Gray
1255:(courtesy:
993:(courtesy:
700:Tokyo Tower
440:smartphones
432:Videophones
306:, numerous
229:heliographs
201:postal mail
116:Mathematics
44:(June 2018)
7222:Categories
6964:Wiktionary
6924:Wikisource
6776:Television
6732:Telematics
6721:Telegraphy
5811:Montserrat
5806:Martinique
5801:Guadeloupe
5656:Costa Rica
5425:San Marino
5385:Montenegro
5365:Luxembourg
5345:Kazakhstan
5248:Azerbaijan
5053:Uzbekistan
5028:Tajikistan
4943:Kyrgyzstan
4923:Kazakhstan
4843:Bangladesh
4833:Azerbaijan
4731:(Portugal)
4689:Somaliland
4609:Seychelles
4574:Mozambique
4559:Mauritania
4544:Madagascar
4499:The Gambia
4434:Cape Verde
4290:Antarctica
4174:Television
3657:Paul Baran
3580:Television
3564:(teletype)
3557:Telegraphy
3535:transistor
3490:Photophone
3468:Smartphone
3458:Mass media
3265:Television
3253:Telephones
3241:Technology
3145:television
2442:microphone
2172:Gold Medal
1146:smartphone
745:BlackBerry
680:Morse code
610:Television
600:Telegraphy
525:Smartphone
414:video call
310:including
280:telegraphy
269:television
146:Technology
131:Philosophy
91:Activities
6904:Wikiquote
6844:Wikibooks
6754:Telephony
6743:Telemetry
6192:Venezuela
6137:Argentina
5910:Australia
5796:Greenland
5711:Nicaragua
5686:Guatemala
5541:Gibraltar
5360:Lithuania
5139:Hong Kong
5093:Palestine
5018:Sri Lanka
5013:Singapore
4893:Indonesia
4564:Mauritius
4261:Locations
4237:Internet2
3998:Bandwidth
3702:Vint Cerf
3590:streaming
3568:Telephone
3515:Semaphore
3406:streaming
3150:... that
3137:... that
3089:... that
2964:elocution
2951:telephone
2201:A German
1470:telegraph
1181:telegraph
1177:semaphore
810:A French
625:Telephony
620:Telephone
436:Telephone
265:telephone
261:telegraph
186:, Germany
101:Geography
61:take care
6884:Wikinews
6864:Wikidata
6505:Internet
6182:Suriname
6172:Paraguay
6157:Colombia
5925:Kiribati
5761:Anguilla
5696:Honduras
5666:Dominica
5641:Barbados
5561:Svalbard
5546:Guernsey
5493:Abkhazia
5440:Slovenia
5435:Slovakia
5410:Portugal
5268:Bulgaria
5162:Category
5083:Abkhazia
5033:Thailand
4988:Pakistan
4968:Mongolia
4963:Maldives
4958:Malaysia
4858:Cambodia
4755: /
4751: /
4744:(France)
4738: /
4716: /
4712: /
4664:Zimbabwe
4639:Tanzania
4489:Ethiopia
4484:Eswatini
4464:Djibouti
4429:Cameroon
4414:Botswana
4323:Category
4273:Americas
4232:Internet
4222:CYCLADES
4139:Ethernet
4089:Concepts
4013:terminal
3959:wireless
3782:Bob Kahn
3630:Pioneers
3453:Internet
3344:Cable TV
3205:Internet
3157:Big Wrig
2845: :
2830: :
2787:Image 74
2765:Kerbango
2760:Image 73
2733:Image 72
2706:Image 71
2683:Image 70
2653:Image 69
2618:Image 68
2595:Image 67
2575:) (from
2568:Image 66
2548:) (from
2541:Image 65
2514:Image 64
2491:Image 63
2464:Image 62
2433:Image 61
2406:Image 60
2379:Image 59
2351:Image 58
2328:Image 57
2305:Image 56
2282:Image 55
2259:Image 54
2229:Image 53
2198:Image 52
2163:Image 51
2140:Image 50
2117:Image 49
2083:Image 48
2060:Image 47
2019:Image 46
1978:Image 45
1951:Image 44
1928:Image 43
1901:Image 42
1878:Image 41
1855:Image 40
1832:Image 39
1809:Image 38
1783:Image 37
1756:Image 36
1725:Image 35
1702:Image 34
1679:Image 33
1656:Image 32
1633:Image 31
1603:Image 30
1583:. (from
1573:Image 29
1550:Image 28
1523:Image 27
1496:Image 26
1465:Image 25
1439:Predicta
1431:Image 24
1408:Image 23
1381:Image 22
1358:Image 21
1327:Image 20
1304:Image 19
1281:Image 18
1253:exposed
1246:Image 17
1207:Image 16
1168:Image 15
1141:Image 14
1115:Image 13
1095:) (from
1088:Image 12
1065:Image 11
1042:Image 10
725:iPhone 6
615:Internet
590:BT Group
535:Wireless
520:AT&T
347:Internet
257:whistles
180:Raisting
136:Religion
50:subpages
6980:portals
6824:Commons
6187:Uruguay
6162:Ecuador
6142:Bolivia
6076:Tokelau
5975:Vanuatu
5791:Curaçao
5776:Bonaire
5771:Bermuda
5701:Jamaica
5681:Grenada
5636:Bahamas
5465:Ukraine
5415:Romania
5375:Moldova
5333:Ireland
5328:Iceland
5323:Hungary
5313:Germany
5308:Georgia
5298:Finland
5293:Estonia
5288:Denmark
5273:Croatia
5258:Belgium
5253:Belarus
5243:Austria
5238:Armenia
5233:Andorra
5228:Albania
5058:Vietnam
4973:Myanmar
4953:Lebanon
4883:Georgia
4838:Bahrain
4828:Armenia
4740:Réunion
4736:Mayotte
4727:Madeira
4722:(Spain)
4718:Melilla
4649:Tunisia
4619:Somalia
4604:Senegal
4589:Nigeria
4579:Namibia
4569:Morocco
4534:Liberia
4529:Lesotho
4479:Eritrea
4449:Comoros
4424:Burundi
4399:Algeria
4343:Commons
4333:Outline
4305:Oceania
4227:FidoNet
4212:ARPANET
4025:circuit
3585:digital
3321:History
3229:Science
2941:, born
1528:tin can
1501:father"
1185:Nalbach
1019:Image 9
988:Image 8
965:Image 7
942:Image 6
919:Image 5
893:Image 4
870:Image 3
848:(right)
840:Image 2
807:Image 1
217:beacons
197:telecom
184:Bavaria
141:Society
111:History
96:Culture
59:Please
6167:Guyana
6147:Brazil
6051:Hawaii
5970:Tuvalu
5716:Panama
5706:Mexico
5651:Canada
5646:Belize
5556:Jersey
5498:Kosovo
5460:Turkey
5450:Sweden
5430:Serbia
5420:Russia
5405:Poland
5400:Norway
5380:Monaco
5350:Latvia
5318:Greece
5303:France
5278:Cyprus
5103:Taiwan
5038:Turkey
5003:Russia
4938:Kuwait
4918:Jordan
4908:Israel
4868:Cyprus
4853:Brunei
4848:Bhutan
4759:
4742:
4729:
4659:Zambia
4654:Uganda
4594:Rwanda
4549:Malawi
4509:Guinea
4404:Angola
4300:Europe
4268:Africa
4252:Usenet
4217:BITNET
4154:Mobile
4030:packet
3530:MOSFET
3525:device
3329:Beacon
3276:Topics
2892:Bell,
2573:Sweden
2359:(from
2209:(from
2097:(from
2038:triode
2024:Audion
1983:Edison
1789:(from
1736:(from
1476:(from
1468:Stock
1445:(from
1436:Philco
1261:(from
1148:(from
999:(from
899:(from
850:(from
271:, and
255:, and
126:People
121:Nature
106:Health
6626:Radio
6152:Chile
5965:Tonga
5955:Samoa
5945:Palau
5935:Nauru
5766:Aruba
5691:Haiti
5531:Åland
5445:Spain
5370:Malta
5340:Italy
5144:Macau
5063:Yemen
5023:Syria
4998:Qatar
4978:Nepal
4913:Japan
4888:India
4878:Egypt
4863:China
4714:Ceuta
4634:Sudan
4584:Niger
4539:Libya
4524:Kenya
4504:Ghana
4494:Gabon
4469:Egypt
4409:Benin
4283:South
4278:North
4242:JANET
4179:Telex
4169:Radio
4008:Nodes
4003:Links
3919:media
3500:Radio
3485:Pager
3413:Drums
3379:video
3374:image
3364:audio
3217:Radio
2843:Other
2763:The "
2469:circa
1992:Punch
1183:) in
844:Baird
812:Gower
605:Radio
422:video
418:audio
343:voice
273:radio
253:horns
233:wires
6177:Peru
6046:Guam
5998:Niue
5920:Fiji
5836:Saba
5661:Cuba
4983:Oman
4948:Laos
4903:Iraq
4898:Iran
4644:Togo
4554:Mali
4444:Chad
4295:Asia
4184:UUCP
4144:ISDN
3118:WEBE
3109:KGRZ
2409:The
2382:The
1728:The
1434:The
1210:The
560:HDMI
420:and
334:and
322:and
314:and
302:and
239:for
203:and
6205:and
5115:and
4189:WAN
4159:NGN
4149:LAN
3428:Fax
3369:DCT
2625:, "
2207:W48
1175:'s
412:or
290:by
231:to
178:in
7224::
3160:"?
3063:-
2925:eɪ
2894:c.
2835:,
1218:'
428:.
395:A
355:)
338:.
330:,
275:.
267:,
263:,
223:,
219:,
215:,
182:,
6115:e
6108:t
6101:v
5890:e
5883:t
5876:v
5611:e
5604:t
5597:v
5206:e
5199:t
5192:v
4801:e
4794:t
4787:v
4379:e
4372:t
4365:v
3305:e
3298:t
3291:v
3147:?
3104:'
2977:)
2937:/
2934:m
2931:ə
2928:.
2922:r
2919:ɡ
2916:ˈ
2913:/
2909:(
2796:)
2773:)
2746:)
2719:)
2692:)
2669:)
2639:)
2604:)
2581:)
2554:)
2527:)
2500:)
2477:)
2450:)
2419:)
2392:)
2365:)
2337:)
2314:)
2291:)
2268:)
2245:)
2215:)
2184:)
2149:)
2126:)
2103:)
2095:)
2069:)
2046:)
2005:)
1964:)
1937:)
1914:)
1887:)
1864:)
1841:)
1818:)
1795:)
1769:)
1742:)
1711:)
1688:)
1665:)
1642:)
1619:)
1589:)
1559:)
1536:)
1509:)
1482:)
1451:)
1417:)
1394:)
1367:)
1344:)
1313:)
1290:)
1267:)
1259:)
1232:)
1193:)
1154:)
1127:)
1101:)
1074:)
1051:)
1028:)
1005:)
997:)
974:)
951:)
928:)
905:)
879:)
856:)
826:)
456:)
71:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
