249:
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138:
88:
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was implemented by a single set of 64 KB chips, from which only 48 KB were used. There was no difference between fast and slow memory regarding video content. System timings were different to the original ZX Spectrum, which prevented some software from displaying timing dependent visual
264:-like shape and separate arrow keys (however, the keyboard was of poorer quality). Inside there was only 64 KB of total memory (16 KB ROM and 48 KB RAM) which was a disappointment in comparison to the Gama.
121:, good keyboard (compared with PMD 85), monitor video output (but no TV output) with 288×256 resolution and four possible colours. Despite some changes in ROM, it was mostly compatible with PMD 85.
291:
and one connector for additional hardware, such as a printer interface. Unlike the previous version of
Didaktik, these connectors were proprietary, with no compatible peripherals available in
225:
in the original ZX Spectrum ROM (thus breaking compatibility with some software) and introduced its own bugs effectively inhibiting the use of the second 32 KB memory bank from BASIC.
148:
was a slightly improved version of previous
Didaktik Alfa, having almost identical hardware. Didaktik Alfa and Beta were mostly deployed in schools to replace older PMD 85 computers.
302:) button that stored the current memory contents on diskette. It was then possible to later load this memory image and continue the software from its previous state.
171:
32 KB memory banks and 16 KB of slower RAM containing graphical data for video output, while the size of ROM was 16 KB. A peripheral interface with a
873:
1445:
229:
fixed the original ZX Spectrum bugs in a more compatible way, and also fixed the memory switching bug. The final and the more compatible model was
1430:
866:
305:
A 3.5-inch floppy disk drive, called D80, was also introduced later in 1992, simultaneously to the release of the
Didaktik Kompakt.
814:
859:
236:
The computer was expensive but available on the market and could be purchased in
Czechoslovak currency outside specialized
1409:
317:
from 1992 was basically a
Didaktik M with a built-in 3.5-inch 720 KB floppy drive and a parallel printer port.
292:
335:
1440:
214:. It is generally said the Gama was unreachable to buy and there were waiting lists several years long.
1350:
1072:
1067:
180:
260:
introduced in 1990, was cheaper and simple in design than the Gama. The case was more modern, with an
295:. Thus, users were forced to develop and produce various homemade interfaces to satisfy their needs.
681:
657:
385:
240:
stores, unlike other foreign home computers. Production of
Didaktik Gama computers ceased in 1992.
409:
1435:
299:
298:
A 5.25-inch floppy disk drive, called D40, was introduced in 1992 and featured a "Snapshot" (see
268:
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38:
1062:
755:
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276:
110:
8:
1375:
1340:
1327:
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1197:
1173:
1023:
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845: – an article in the Russian Knowledge about the Russian ULA replacement
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chip made by
Ferranti. All games developed for the ZX Spectrum 48K were generally
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56:
compatible machines aimed at schools, then switching to the home market with
27:
779:
730:
633:
509:
1231:
222:
79:
soon after. The production of
Didaktik computers stopped in the year 1994.
1241:
75:, around the middle of the 1990s until it was finally steam-rolled by the
1245:
1115:
931:
917:
588:
SAPI.CZ - web věnovaný československým osmibitů, zejména počítačům SAPI-1
563:
SAPI.CZ - web věnovaný československým osmibitů, zejména počítačům SAPI-1
538:
SAPI.CZ - web věnovaný československým osmibitů, zejména počítačům SAPI-1
186:
The case was similar to that of the ZX Spectrum+, a grey or black box in
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35:
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The computer was considerably redesigned. Instead of the original
194:
and connectors mounted on the rear side. The Gama uses a standard
1111:
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941:
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137:
87:
1355:
1119:
1101:
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64:
53:
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1209:
1155:
279:, instead of a typical 4:3 rectangle. In addition, the whole
237:
167:
was a ZX Spectrum clone with 80 KB RAM divided into two
118:
72:
68:
24:
459:"Computers list by manufacturer: Didaktik (Slovak Republic)"
1213:
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907:
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833:
433:
63:
Didaktik's glory diminished with the falling price of the
280:
217:
Didaktik Gama was produced in three variants: the first,
98:
was produced in 1986, as a "more professional" clone of
536:[8 bits / PMD-85 clones / DIDAKTIK ALFA 2].
586:[8 bits / PMD-85 clones / DIDAKTIK BETA].
561:[8 bits / PMD-85 clones / DIDAKTIK ALFA].
829:A schematic including the inside of the modulator
1422:
16:Home computers produced in former Czechoslovakia
836: – the website of the company
867:
883:Sinclair computers, derivatives, and clones
874:
860:
753:
704:
607:
534:"8 bity / Klony PMD-85 / DIDAKTIK ALFA 2"
1446:Science and technology in Czechoslovakia
362:"Sinclair Clones - Didaktik Skalica Ltd"
336:"Home Computers Behind The Iron Curtain"
287:There were two separated connectors for
271:, a custom circuit from Russian company
247:
155:
136:
86:
812:Didaktik computers on old-computers.com
584:"8 bity / Klony PMD-85 / DIDAKTIK BETA"
559:"8 bity / Klony PMD-85 / DIDAKTIK ALFA"
1431:Computer-related introductions in 1986
1423:
179:plotter and printer connections and a
855:
756:"The PCB-Gallery - Didaktik Kompakt"
504:
502:
355:
353:
351:
349:
333:
414:OLD-COMPUTERS.COM : The Museum
308:
13:
610:"The PCB-Gallery - Didaktik Gamma"
334:Malý, Martin (December 15, 2014).
14:
1457:
800:
499:
346:
275:was used, giving a square screen
940:
151:
132:
82:
772:
747:
723:
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674:
650:
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576:
551:
359:
206:was used as data storage and a
52:Initially the company produced
707:"The PCB-Gallery - Didaktik M"
526:
475:
451:
426:
402:
378:
327:
1:
320:
243:
102:. It featured 2.048 MHz
7:
754:Slabihoud, Stephan (2000).
705:Slabihoud, Stephan (2000).
608:Slabihoud, Stephan (2000).
366:Sinclair Nostalgia Products
10:
1462:
938:
190:size, with a flat plastic
175:chip was added, providing
1384:
1320:
1288:
1254:
1081:
1050:
1032:
993:
972:
949:
889:
834:Didaktik družstvo Skalica
125:was a clone of PMD 85-1,
41:produced by Didaktik in
202:with this computer. An
67:computers, such as the
30:based on the clones of
253:
161:
142:
92:
686:www.old-computers.com
662:www.old-computers.com
390:www.old-computers.com
251:
159:
140:
90:
1168:ZX Spectrum based:
894:Science of Cambridge
1376:Magnum Light Phaser
1341:Rotronics Wafadrive
1328:Beta Disk Interface
892:Sinclair Research /
1441:ZX Spectrum clones
1312:FDD3000 Disk Drive
1298:Neptun 156 Monitor
1068:ZX Spectrum clones
1034:Cambridge Computer
817:2011-06-05 at the
807:Didaktik computers
780:"Didaktik Kompakt"
386:"Didaktik Kompakt"
254:
162:
143:
93:
1418:
1417:
1405:Richard Altwasser
1371:Stack Light Rifle
1366:RAM Music Machine
1321:Other peripherals
1289:Timex peripherals
1256:Sinclair Research
995:Timex Corporation
985:ZX Spectrum Vega+
510:"Didaktik Alfa 2"
181:Kempston joystick
1453:
1222:ZX Spectrum Next
1178:CZ Spectrum Plus
980:ZX Spectrum Vega
973:Licenced systems
944:
876:
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436:[Home].
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315:Didaktik Kompakt
309:Didaktik Kompakt
45:, in the former
23:was a series of
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1452:
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1421:
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1419:
1414:
1380:
1316:
1284:
1250:
1194:Scorpion ZS-256
1086:
1085:related systems
1084:
1077:
1056:
1046:
1028:
989:
968:
945:
936:
926:ZX Spectrum 128
896:
893:
885:
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846:
837:
819:Wayback Machine
803:
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797:
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729:
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688:
680:
679:
675:
666:
664:
658:"Didaktik Gama"
656:
655:
651:
642:
640:
634:"Didaktik Gama"
632:
631:
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491:
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483:"Didaktik Alfa"
481:
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438:www.didaktik.sk
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127:Didaktik Alfa 2
123:Didaktik Alfa 1
85:
17:
12:
11:
5:
1459:
1449:
1448:
1443:
1438:
1436:Home computers
1433:
1416:
1415:
1413:
1412:
1407:
1402:
1400:Rick Dickinson
1397:
1396:John Pemberton
1394:
1392:Clive Sinclair
1388:
1386:
1382:
1381:
1379:
1378:
1373:
1368:
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1353:
1348:
1343:
1338:
1335:
1330:
1324:
1322:
1318:
1317:
1315:
1314:
1309:
1307:FDD Disk Drive
1304:
1299:
1296:
1295:TS2040 Printer
1292:
1290:
1286:
1285:
1283:
1282:
1277:
1275:ZX Interface 2
1272:
1270:ZX Interface 1
1267:
1261:
1259:
1252:
1251:
1249:
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1238:
1224:
1166:
1104:
1089:
1087:
1082:
1079:
1078:
1076:
1075:
1070:
1065:
1063:ZX80/81 clones
1059:
1057:
1051:
1048:
1047:
1045:
1044:
1038:
1036:
1030:
1029:
1027:
1026:
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1005:
999:
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987:
982:
976:
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966:
964:ZX Spectrum +3
961:
959:ZX Spectrum +2
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953:
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937:
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831:
826:
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802:
801:External links
799:
796:
795:
771:
760:8bit-museum.de
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722:
711:8bit-museum.de
697:
673:
649:
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614:8bit-museum.de
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345:
325:
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293:Czechoslovakia
245:
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204:audio cassette
153:
150:
134:
131:
117:with built-in
84:
81:
47:Czechoslovakia
28:home computers
15:
9:
6:
4:
3:
2:
1458:
1447:
1444:
1442:
1439:
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1426:
1411:
1410:Steve Vickers
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1280:ZX Microdrive
1278:
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1260:
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1253:
1247:
1243:
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1207:
1206:Komputer 2086
1203:
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1117:
1113:
1109:
1106:ZX81 based:
1105:
1103:
1099:
1095:
1091:
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1088:
1083:Compatible or
1080:
1074:
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589:
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579:
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529:
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503:
488:
487:Spludlow MAME
484:
478:
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435:
429:
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411:
405:
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367:
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221:, fixed some
220:
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209:
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201:
197:
193:
189:
184:
182:
178:
174:
170:
166:
165:Didaktik Gama
160:Didaktik Gama
158:
152:Didaktik Gama
149:
147:
146:Didaktik Beta
141:Didaktik Beta
139:
133:Didaktik Beta
130:
129:of PMD 85-2.
128:
124:
120:
116:
112:
109:
106:CPU, 48
105:
101:
97:
96:Didaktik Alfa
91:Didaktik Alfa
89:
83:Didaktik Alfa
80:
78:
74:
70:
66:
61:
59:
55:
50:
48:
44:
40:
37:
33:
29:
26:
22:
1302:TS2050 Modem
1232:One Per Desk
1181:
1140:CZ 1500 Plus
1136:CZ 1000 Plus
1092:ZX80 based:
922:ZX Spectrum+
847:(in Russian)
787:. Retrieved
783:
774:
763:. Retrieved
759:
749:
738:. Retrieved
734:
731:"Didaktik M"
725:
714:. Retrieved
710:
700:
689:. Retrieved
685:
682:"Didaktik M"
676:
665:. Retrieved
661:
652:
641:. Retrieved
637:
628:
617:. Retrieved
613:
603:
592:. Retrieved
587:
578:
567:. Retrieved
562:
553:
542:. Retrieved
537:
528:
517:. Retrieved
513:
490:. Retrieved
486:
477:
466:. Retrieved
462:
453:
442:. Retrieved
437:
428:
417:. Retrieved
413:
404:
393:. Retrieved
389:
380:
369:. Retrieved
365:
339:
329:
314:
312:
304:
297:
286:
277:aspect ratio
266:
257:
255:
235:
230:
226:
218:
216:
210:served as a
185:
164:
163:
145:
144:
126:
122:
113:, 8 KB
95:
94:
62:
51:
20:
18:
1258:peripherals
1246:Jupiter Ace
1152:Ringo R-470
1144:CZ Spectrum
1116:Lambda 8300
918:ZX Spectrum
838:(in Slovak)
360:Arn, Lift.
300:hibernation
58:ZX Spectrum
1425:Categories
1265:ZX Printer
1226:QL based:
789:2023-01-17
765:2023-01-17
740:2023-01-17
716:2023-01-17
691:2023-01-17
667:2023-01-17
643:2023-01-17
619:2023-01-17
594:2023-01-17
590:(in Czech)
569:2023-01-17
565:(in Czech)
544:2023-01-17
540:(in Czech)
519:2023-01-17
492:2023-01-17
468:2023-01-17
444:2023-01-17
440:(in Czech)
419:2023-01-17
410:"Didaktik"
395:2023-01-17
371:2023-01-17
321:References
284:effects.
258:Didaktik M
252:Didaktik M
244:Didaktik M
200:compatible
177:centronics
104:Intel 8080
39:processors
32:Intel 8080
1346:Multiface
1242:SAM Coupé
1186:Dubna 48K
1108:Apply 300
1073:QL clones
1052:Lists of
1015:(TC 2068)
824:PCB scans
289:joysticks
262:ergonomic
36:Zilog Z80
1361:SpecDrum
1351:Kempston
1333:DISCiPLE
1228:CST Thor
1202:Kay 1024
1198:Sprinter
1182:Didaktik
1174:Pentagon
1148:NE-Z8000
1094:MicroAce
1013:T/S 2068
1008:T/S 1500
1003:T/S 1000
815:Archived
340:HACKADAY
273:Angstrem
231:Gama '89
227:Gama '88
219:Gama '87
192:keyboard
169:switched
60:clones.
21:Didaktik
1240:Other:
1236:Q40/Q60
1132:CZ 1500
1128:CZ 1000
1124:CZ 2000
1112:AS-1000
1024:TC 3256
1019:TC 2048
951:Amstrad
784:1000Bit
735:1000BiT
638:1000BiT
514:1000BiT
463:1000BiT
434:"Domov"
212:monitor
43:Skalica
1385:People
1356:Currah
1190:Hobbit
1120:CP-200
1102:NE-Z80
1054:clones
843:Т34ВГ1
183:port.
100:PMD 85
65:16-bit
54:PMD 85
1218:Robik
1210:TK90X
1156:TK82C
238:Tuzex
119:BASIC
73:Amiga
69:Atari
25:8-bit
1337:MB02
1214:TK95
1164:TK85
1160:TK83
1098:TK80
913:ZX81
908:ZX80
903:MK14
313:The
256:The
223:bugs
173:8255
71:and
34:and
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