Knowledge

IBM mainframe

Source 📝

215: 438: 309: 2333: 2313: 565: 2323: 242:("EDP"). IBM had two model categories: one (701, 704, 709, 7030, 7090, 7094, 7040, 7044) for engineering and scientific use, and one (702, 705, 705-II, 705-III, 7080, 7070, 7072, 7074, 7010) for commercial or data processing use. The two categories, scientific and commercial, generally used common peripherals but had completely different 473:
capability to emulate the more popular older models. Thus 360/30s with this added cost feature could run 1401 programs and the larger 360/65s could run 7094 programs. To run old programs, the 360 had to be halted and restarted in emulation mode. Many customers kept using their old software and one of
664:
These are essentially identical, but distinguished for software cost control: all but CP are slightly restricted such they cannot be used to run arbitrary operating systems, and thus do not count in software licensing costs (which are typically based on the number of CPs). There are other supporting
272:
for IBM computers were written by IBM customers who did not wish to have their very expensive machines (US$ 2M in the mid-1950s) sitting idle while operators set up jobs manually. These first operating systems were essentially scheduled work queues. It is generally thought the first operating system
461:. Among these were supervisor and application mode programs and instructions, as well as built-in memory protection facilities. Hardware memory protection was provided to protect the operating system from the user programs (tasks) and user tasks from each other. The new machine also had a larger 367:
IBM had difficulty getting customers to upgrade from the smaller machines to the mainframes because so much software had to be rewritten. The 7010 was introduced in 1962 as a mainframe-sized 1410. The later Systems 360 and 370 could emulate the 1400 machines. A desk-size machine with a different
457:). Some of the arithmetic units and addressing features were optional on some models of the System/360. However, models were upward compatible and most were also downward compatible. The System/360 was also the first computer in wide use to include dedicated hardware provisions for the use of 468:
The smaller models in the System/360 line (e.g. the 360/30) were intended to replace the 1400 series while providing an easier upgrade path to the larger 360s. To smooth the transition from the second generation to the new line, IBM used the 360's
531:, which, unlike the earlier virtual-memory operating systems, ran separate programs in separate address spaces, rather than running all programs in a single virtual address space. The virtual memory capabilities also allowed the system to support 453:," or "all-around" computer system. System/360 incorporated features which had previously been present on only either the commercial line (such as decimal arithmetic and byte addressing) or the engineering and scientific line (such as 684:
Software to allow users to run "traditional" workloads on zIIPs and zAAPs was briefly marketed by Neon Enterprise Software as "zPrime" but was withdrawn from the market in 2011 after a lawsuit by IBM.
296:
The second generation (transistor-based) products were a mainstay of IBM's business and IBM continued to make them for several years after the introduction of the System/360. (Some
289:. As software became more complex and important, the cost of supporting it on so many different designs became burdensome, and this was one of the factors which led IBM to develop 445:
IBM announced the System/360 (S/360) line of mainframes in April 1964. The System/360 was a single series of compatible models for both commercial and scientific use. The number "
319:
Prior to System/360, IBM also sold computers smaller in scale that were not considered mainframes, though they were still bulky and expensive by modern standards. These included:
1045: 2598: 249:
IBM initially sold its computers without any software, expecting customers to write their own; programs were manually initiated, one at a time. Later, IBM provided
2593: 2552: 2926: 1127: 1075: 3186: 2547: 1015: 2581: 2576: 1498: 482: 3217: 670: 2277: 674: 1302: 2777: 219: 1523: 1038: 909:
All supported IBM operating systems test the type of processor they are running on and restrict usage in accordance with license terms.
3089: 2564: 2535: 1655: 1633: 817: 2616: 949: 170: 3050: 2919: 2798: 1297: 1769: 542:
would run one or more virtual machines running either standard System/360 or System/370 operating systems or the single-user
527:
variant of OS/360 MVT, and the DOS/VS variant of DOS/360 were introduced to use the virtual memory capabilities, followed by
3191: 2411: 474:
the features of the later System/370 was the ability to switch to emulation mode and back under operating system control.
1513: 2912: 2376: 2266: 890: 2997: 2989: 2000: 1914: 1575: 1204: 1184: 1166: 3212: 3162: 1846: 1101: 550:
VM system could run multiple virtual machines, one per user, with each virtual machine running an instance of CMS.
976: 423:
is a designation used by IBM for a class of computer systems which fall in between mainframes and microcomputers.
3002: 2356: 2346: 2336: 1873: 930: 2351: 2046: 2036: 1934: 1123: 1071: 3181: 3174: 2239: 2005: 1267: 789: 600: 543: 372:, was released concurrently with the System/360 to address the niche occupied by the 1620. It used the same 2366: 2361: 1970: 885: 753: 214: 163: 1240: 1230: 465:
than the older mainframes, 24 bits addressing 8-bit bytes vs. a typical 18 bits addressing 36-bit words.
1863: 1755: 1005: 983: 636: 226:
From 1952 into the late 1960s, IBM manufactured and marketed several large computer models, known as the
119: 1235: 3031: 2234: 2218: 1760: 1715: 1643: 841: 239: 1348: 454: 816:
There are software-based emulators for the System/370, System/390, and System z hardware, including
2404: 2371: 2152: 1960: 1815: 749: 737: 60: 3122: 3075: 3019: 2213: 1919: 1793: 852:. IBM offers an emulator called zPDT (System z Personal Development Tool) which runs on Linux on 765: 313: 156: 2244: 2015: 1831: 1533: 777: 729: 348: 282: 98: 3099: 2260: 2225: 1851: 1810: 1441: 875: 717: 709: 536: 418: 357:(business data processing; very successful and many 1400 peripherals were used with the 360s) 625:
SAP, System Assist Processor: designed to handle various system accounting, management, and
206:
in IBM's line of business computers are developments of the basic design of the System/360.
3169: 2080: 1990: 1944: 1939: 1745: 1543: 1488: 1471: 1314: 865: 761: 649:, System z Integrated Information Processor: dedicated to run specific workloads including 619: 327: 254: 8: 3157: 2397: 2254: 2116: 2051: 1856: 1799: 1765: 829: 227: 191: 40: 961: 2859: 2760: 2420: 2229: 2204: 2104: 2086: 1750: 1193: 870: 437: 203: 3140: 2682: 2588: 2341: 2288: 2182: 2177: 2041: 1965: 1560: 1528: 1436: 1368: 1353: 1260: 1200: 1180: 1162: 1155: 849: 615: 593: 269: 129: 2879: 2783: 2509: 2271: 2074: 2066: 1995: 1897: 1825: 1426: 1383: 1378: 693: 470: 458: 190:
since 1952. During the 1960s and 1970s, IBM dominated the computer market with the
2885: 2873: 2718: 2706: 2569: 2540: 2497: 2491: 2249: 2162: 1985: 1924: 1570: 1493: 1363: 801: 532: 354: 308: 243: 45: 2867: 2298: 2172: 2167: 2128: 2056: 2010: 1929: 1638: 1518: 1292: 1284: 741: 580:, which extends the architecture used by the System/390 mainframes to 64 bits. 577: 516: 450: 432: 278: 144: 124: 93: 78: 55: 50: 2848: 281:' Research division in 1956. IBM enhanced one of GM-NAA I/O's successors, the 3206: 2944: 2147: 2122: 2092: 1878: 1599: 1538: 1446: 1421: 666: 462: 337: 88: 2904: 2316: 2110: 2098: 1703: 1698: 1677: 1253: 880: 547: 524: 512: 446: 411: 396: 387: 341: 1220: 2637: 2326: 2187: 2157: 1980: 1868: 1592: 1587: 1358: 626: 331: 231: 83: 2842: 1097: 380:, which was relatively easy to adapt to larger machines when necessary. 2824: 2742: 1909: 1902: 1836: 1582: 1403: 1393: 635:, System z Application Assist Processor: currently limited to run only 539: 519:
capabilities in all models other than the first System/370 models; the
505: 501: 290: 274: 235: 199: 195: 3083: 2836: 2830: 2818: 2754: 2748: 2730: 2503: 1667: 1660: 1476: 1398: 1388: 934: 793: 390:(semiconductor memory, process control, incompatible replacement for 250: 3064: 2812: 2724: 2676: 2283: 2031: 1975: 1740: 1725: 1708: 1553: 1481: 1451: 821: 805: 781: 757: 406: 401: 391: 369: 360: 297: 72: 68: 64: 383:
IBM also introduced smaller machines after S/360. These included:
2979: 2974: 2969: 2964: 2959: 2954: 2949: 2712: 2670: 2559: 2434: 2293: 1735: 1730: 1672: 1503: 1431: 837: 797: 701: 650: 564: 494: 490: 486: 377: 323: 261: 257: 139: 134: 808:
subsystems can run on more than one mainframe operating system.
3107: 2806: 2736: 2694: 2688: 2658: 2652: 2530: 2451: 1720: 1693: 1650: 1628: 1548: 853: 745: 721: 705: 520: 509: 478: 373: 363:(decimal architecture, engineering, scientific, and education) 246:, and there were incompatibilities even within each category. 3058: 3039: 2474: 2468: 2389: 1341: 845: 833: 825: 733: 725: 678: 658: 604: 573: 559: 286: 265: 103: 1225: 2700: 2664: 1565: 1508: 785: 713: 697: 646: 632: 608: 376:
character encoding as the 360 and was mostly programmed in
1276: 1010: 665:
processors typically installed inside mainframes such as
654: 640: 528: 187: 1236:
IBM Archives: IBM Mainframe Family tree & chronology
588:
The different processors on current IBM mainframes are:
941: 736:(a successor of Transaction Processing Facility in the 1245: 764:. In October 2008, Sine Nomine Associates introduced 477:
Operating systems for the System/360 family included
776:
Current IBM mainframes run all the major enterprise
576:family, introduced in 2000 with the z900, supports 1192: 1154: 968: 16:Large computer systems produced by IBM since 1952 3204: 1499:Criminal Reduction Utilising Statistical History 238:. These machines established IBM's dominance in 234:, while the later, second-generation 7000s used 285:, and provided it to customers under the name 209: 3187:History of computing hardware (1960s–present) 2934: 2920: 2405: 1261: 923: 164: 2927: 2913: 2412: 2398: 1268: 1254: 1175:Prasad, Nallur and Savit, Jeffrey (1994). 230:. The first-generation 700s were based on 171: 157: 1036: 696:in use on current IBM mainframes include 1124:"IBM System z Personal Development Tool" 563: 436: 340:(vacuum tube logic, first computer with 307: 213: 1177:IBM Mainframes: Architecture and Design 1153:Bashe, Charles J.; et al. (1986). 1069: 1006:"IBM Archives: System/360 Announcement" 974: 312:IBM 1401 undergoing restoration at the 186:are large computer systems produced by 3218:Computer-related introductions in 1952 3205: 1191:Pugh, Emerson W.; et al. (1991). 500:The System/360 later evolved into the 2908: 2393: 1634:Center for The Business of Government 1249: 1179:, 2nd ed. McGraw-Hill Osborne Media. 1152: 300:remained in service into the 1980s.) 253:for the newly developed higher-level 3192:List of pioneers in computer science 2645: 2322: 1190: 1018:from the original on January 2, 2021 947: 931:"IBM 7090/94 IBSYS Operating System" 687: 84:eServer zSeries (900, 800; 990, 890) 1226:IBM Mainframe Resources & Forum 1221:Official IBM mainframe page (IBM Z) 303: 13: 1146: 1130:from the original on March 4, 2016 1078:from the original on June 30, 2012 891:Input/Output Configuration Program 768:; it has since been discontinued. 583: 553: 513:zSeries, System z, and zEnterprise 14: 3229: 3090:Computers built 1955 through 1978 1303:PC business acquisition by Lenovo 1241:IBM Archives: IBM Mainframe album 1214: 1104:from the original on May 18, 2015 1051:from the original on July 8, 2012 986:from the original on July 1, 2023 426: 2332: 2331: 2321: 2312: 2311: 2001:Sabre airline reservation system 1847:Thomas J. Watson Research Center 515:machines. System/370 introduced 99:zEnterprise System (z196, zEC12) 1514:Information Management Software 1195:IBM's 360 and Early 370 Systems 2419: 2267:International chess tournament 2047:Globally integrated enterprise 2037:Commercial Processing Workload 1116: 1090: 1070:Radding, Alan (June 6, 2011). 1063: 1039:"Mainframe concepts (page 31)" 1030: 998: 903: 1: 3182:History of computing hardware 2006:Scanning tunneling microscope 1098:"Technical Overview: FLEX-ES" 916: 771: 681:Express disk I/O processors. 601:Integrated Facility for Linux 544:Conversational Monitor System 1231:IBM Archives: IBM Mainframes 1072:"Bye bye zPrime on System z" 886:IBM Secure Service Container 811: 754:SUSE Linux Enterprise Server 7: 1874:Canada Head Office Building 1864:Cambridge Scientific Center 1756:Science Research Associates 1524:Mainframe operating systems 948:Gray, George (March 1999). 859: 828:, and the freely available 596:: general-purpose processor 523:variant of OS/360 MFT, the 414:(Introduced 96 column card) 293:and its operating systems. 210:First and second generation 10: 3234: 3032:University of Pennsylvania 1935:Virtual Universe Community 1656:International subsidiaries 1576:Service Automation Manager 677:networking processor, and 557: 430: 334:, business and scientific) 240:electronic data processing 104:IBM Z (z13, z14, z15, z16) 3150: 3133: 3117: 3098: 3074: 3049: 3030: 3017: 2988: 2940: 2935:IBM vacuum tube computers 2902: 2895: 2858: 2797: 2770: 2636: 2629: 2609: 2526: 2519: 2484: 2461: 2444: 2427: 2307: 2196: 2138: 2065: 2024: 1953: 1887: 1783: 1686: 1621: 1612: 1464: 1414: 1329: 1322: 1313: 1283: 954:Unisys History Newsletter 455:floating-point arithmetic 1961:Automated teller machine 1915:The Great Mind Challenge 1298:Mergers and acquisitions 896: 750:Red Hat Enterprise Linux 738:Airlines Control Program 3213:IBM mainframe computers 3123:UNIVAC family computers 3076:Sperry Rand Corporation 2617:Soviet computer systems 1920:Linux Technology Center 1275: 766:OpenSolaris on System z 607:OSes (optionally under 441:IBM System/360 Model 50 314:Computer History Museum 273:used for real work was 2799:University of Illinois 2245:Dynamic infrastructure 2210:Big Blue sports teams 2016:Universal Product Code 804:. In many cases these 778:transaction processing 618:: designed to support 569: 442: 349:Early IBM disk storage 316: 283:SHARE Operating System 223: 2377:Vacuum tube computers 2261:IBM and the Holocaust 2226:Common Public License 2111:Louis V. Gerstner Jr. 1894:Academy of Technology 1349:Power microprocessors 1157:IBM's Early Computers 876:IBM midrange computer 567: 440: 368:instruction set, the 311: 255:programming languages 218:IBM 704 mainframe at 217: 3170:Vacuum-tube computer 1991:Magnetic stripe card 1940:World Community Grid 1816:Toronto Software Lab 1472:Carbon Design System 1427:Cell microprocessors 1014:. January 23, 2003. 977:"The 360 Revolution" 866:List of IBM products 796:Application Server, 762:UTS (Mainframe UNIX) 756:). Some systems run 720:and VM/XA SP in the 481:(with PCP, MFT, and 328:decimal architecture 326:(vacuum tube logic, 3158:Transistor computer 2594:Electronika SS VLSI 2255:GUIDE International 2117:Samuel J. Palmisano 1976:Electronic keypunch 1800:One Atlantic Center 1770:Weather Underground 1766:The Weather Company 1074:. DancingDinosaur. 960:(3). Archived from 832:, which runs under 820:, which runs under 449:" suggested a "360 228:IBM 700/7000 series 204:mainframe computers 2860:Harvard University 2357:Personal computers 2347:Midrange computers 2337:Navigational boxes 2230:IBM Public License 2205:A Boy and His Atom 2163:Michelle J. Howard 2105:John Fellows Akers 2087:T. Vincent Learson 1794:1250 René-Lévesque 1534:Planning Analytics 1037:IBM corp. (2005). 964:on August 9, 2017. 937:on April 24, 2021. 871:Amdahl Corporation 570: 443: 317: 224: 198:, followed by the 3200: 3199: 3141:Colossus computer 3129: 3128: 3026: 3025: 3011: 3010: 2793: 2792: 2625: 2624: 2387: 2386: 2352:Operating systems 2214:American football 2183:Joseph R. Swedish 2178:Martha E. Pollack 2081:Thomas Watson Jr. 2042:Customer engineer 1966:Cynefin framework 1852:Hakozaki Facility 1811:Rome Software Lab 1779: 1778: 1608: 1607: 1561:Rational Software 1460: 1459: 1442:Personal Computer 1437:Midrange computer 850:Microsoft Windows 780:environments and 728:(which is in the 694:operating systems 688:Operating systems 616:Coupling Facility 594:central processor 459:operating systems 420:Midrange computer 270:operating systems 181: 180: 3225: 2929: 2922: 2915: 2906: 2905: 2900: 2899: 2880:Harvard Mark III 2643: 2642: 2634: 2633: 2602: 2585: 2573: 2556: 2544: 2524: 2523: 2414: 2407: 2400: 2391: 2390: 2335: 2334: 2325: 2324: 2315: 2314: 2075:Thomas J. Watson 1996:Relational model 1945:Think conference 1826:330 North Wabash 1746:Microelectronics 1619: 1618: 1544:Quantum Platform 1489:Cognos Analytics 1327: 1326: 1320: 1319: 1270: 1263: 1256: 1247: 1246: 1210: 1198: 1172: 1160: 1140: 1139: 1137: 1135: 1120: 1114: 1113: 1111: 1109: 1094: 1088: 1087: 1085: 1083: 1067: 1061: 1060: 1058: 1056: 1050: 1043: 1034: 1028: 1027: 1025: 1023: 1002: 996: 995: 993: 991: 981: 972: 966: 965: 945: 939: 938: 933:. Archived from 927: 910: 907: 716:(which followed 700:(which followed 620:Parallel Sysplex 614:ICF, Integrated 533:virtual machines 471:microprogramming 304:Smaller machines 244:instruction sets 173: 166: 159: 21: 20: 3233: 3232: 3228: 3227: 3226: 3224: 3223: 3222: 3203: 3202: 3201: 3196: 3146: 3125: 3113: 3094: 3070: 3045: 3022: 3013: 3012: 3007: 2984: 2936: 2933: 2891: 2886:Harvard Mark IV 2874:Harvard Mark II 2854: 2789: 2766: 2621: 2605: 2596: 2579: 2567: 2550: 2538: 2515: 2480: 2457: 2440: 2423: 2418: 2388: 2383: 2303: 2289:SHARE computing 2250:GlobalFoundries 2192: 2140: 2134: 2061: 2020: 2011:Financial swaps 1986:Hard disk drive 1949: 1883: 1857:Yamato Facility 1775: 1682: 1614: 1604: 1571:Tivoli Software 1456: 1410: 1309: 1279: 1274: 1217: 1207: 1169: 1149: 1147:Further reading 1144: 1143: 1133: 1131: 1122: 1121: 1117: 1107: 1105: 1096: 1095: 1091: 1081: 1079: 1068: 1064: 1054: 1052: 1048: 1041: 1035: 1031: 1021: 1019: 1004: 1003: 999: 989: 987: 979: 973: 969: 946: 942: 929: 928: 924: 919: 914: 913: 908: 904: 899: 862: 814: 774: 730:DOS/360 lineage 690: 603:: dedicated to 586: 584:Processor units 568:IBM System z800 562: 556: 554:Today's systems 435: 429: 355:IBM 1400 series 306: 212: 177: 41:700/7000 series 17: 12: 11: 5: 3231: 3221: 3220: 3215: 3198: 3197: 3195: 3194: 3189: 3184: 3179: 3178: 3177: 3167: 3166: 3165: 3154: 3152: 3148: 3147: 3145: 3144: 3137: 3135: 3134:United Kingdom 3131: 3130: 3127: 3126: 3121: 3119: 3115: 3114: 3112: 3111: 3104: 3102: 3096: 3095: 3093: 3092: 3086: 3080: 3078: 3072: 3071: 3069: 3068: 3062: 3055: 3053: 3047: 3046: 3044: 3043: 3036: 3034: 3028: 3027: 3024: 3023: 3020:IBM mainframes 3018: 3015: 3014: 3009: 3008: 3006: 3005: 3000: 2994: 2992: 2986: 2985: 2983: 2982: 2977: 2972: 2967: 2962: 2957: 2952: 2947: 2941: 2938: 2937: 2932: 2931: 2924: 2917: 2909: 2903: 2897: 2893: 2892: 2890: 2889: 2883: 2877: 2871: 2868:Harvard Mark I 2864: 2862: 2856: 2855: 2853: 2852: 2849:Trusted ILLIAC 2846: 2840: 2834: 2828: 2822: 2816: 2810: 2803: 2801: 2795: 2794: 2791: 2790: 2788: 2787: 2781: 2774: 2772: 2768: 2767: 2765: 2764: 2758: 2752: 2746: 2740: 2734: 2728: 2722: 2716: 2710: 2704: 2698: 2692: 2686: 2680: 2674: 2668: 2662: 2656: 2649: 2647: 2640: 2631: 2627: 2626: 2623: 2622: 2620: 2619: 2613: 2611: 2607: 2606: 2604: 2603: 2591: 2586: 2574: 2562: 2557: 2545: 2533: 2527: 2521: 2517: 2516: 2514: 2513: 2507: 2501: 2495: 2488: 2486: 2482: 2481: 2479: 2478: 2472: 2465: 2463: 2459: 2458: 2456: 2455: 2448: 2446: 2442: 2441: 2439: 2438: 2431: 2429: 2425: 2424: 2417: 2416: 2409: 2402: 2394: 2385: 2384: 2382: 2381: 2380: 2379: 2374: 2369: 2364: 2359: 2354: 2349: 2344: 2329: 2319: 2308: 2305: 2304: 2302: 2301: 2296: 2291: 2286: 2281: 2274: 2272:Lucifer cipher 2269: 2264: 2257: 2252: 2247: 2242: 2237: 2232: 2223: 2222: 2221: 2216: 2208: 2200: 2198: 2194: 2193: 2191: 2190: 2188:Peter R. Voser 2185: 2180: 2175: 2173:Andrew Liveris 2170: 2168:Arvind Krishna 2165: 2160: 2155: 2150: 2144: 2142: 2136: 2135: 2133: 2132: 2129:Arvind Krishna 2126: 2120: 2114: 2108: 2102: 2096: 2090: 2084: 2078: 2071: 2069: 2063: 2062: 2060: 2059: 2054: 2049: 2044: 2039: 2034: 2028: 2026: 2022: 2021: 2019: 2018: 2013: 2008: 2003: 1998: 1993: 1988: 1983: 1978: 1973: 1968: 1963: 1957: 1955: 1951: 1950: 1948: 1947: 1942: 1937: 1932: 1930:Smarter Planet 1927: 1922: 1917: 1912: 1907: 1906: 1905: 1895: 1891: 1889: 1885: 1884: 1882: 1881: 1876: 1871: 1866: 1861: 1860: 1859: 1854: 1849: 1841: 1840: 1839: 1834: 1829: 1822:IBM Buildings 1820: 1819: 1818: 1813: 1807:Software Labs 1805: 1804: 1803: 1797: 1796:, Montreal, QC 1787: 1785: 1781: 1780: 1777: 1776: 1774: 1773: 1763: 1761:Service Bureau 1758: 1753: 1751:Product Center 1748: 1743: 1738: 1733: 1728: 1723: 1718: 1716:Ambra Computer 1713: 1712: 1711: 1706: 1696: 1690: 1688: 1684: 1683: 1681: 1680: 1675: 1670: 1665: 1664: 1663: 1653: 1648: 1647: 1646: 1636: 1631: 1625: 1623: 1616: 1610: 1609: 1606: 1605: 1603: 1602: 1597: 1596: 1595: 1585: 1580: 1579: 1578: 1568: 1563: 1558: 1557: 1556: 1551: 1541: 1536: 1531: 1526: 1521: 1519:Lotus Software 1516: 1511: 1506: 1501: 1496: 1491: 1486: 1485: 1484: 1474: 1468: 1466: 1462: 1461: 1458: 1457: 1455: 1454: 1449: 1444: 1439: 1434: 1429: 1424: 1418: 1416: 1412: 1411: 1409: 1408: 1407: 1406: 1401: 1396: 1391: 1386: 1381: 1373: 1372: 1371: 1366: 1356: 1351: 1346: 1345: 1344: 1333: 1331: 1324: 1317: 1311: 1310: 1308: 1307: 1306: 1305: 1295: 1289: 1287: 1281: 1280: 1273: 1272: 1265: 1258: 1250: 1244: 1243: 1238: 1233: 1228: 1223: 1216: 1215:External links 1213: 1212: 1211: 1205: 1188: 1173: 1167: 1148: 1145: 1142: 1141: 1115: 1089: 1062: 1029: 997: 967: 940: 921: 920: 918: 915: 912: 911: 901: 900: 898: 895: 894: 893: 888: 883: 878: 873: 868: 861: 858: 813: 810: 773: 770: 742:Linux on IBM Z 740:lineage), and 689: 686: 669:accelerators ( 662: 661: 644: 630: 623: 612: 597: 585: 582: 578:z/Architecture 558:Main article: 555: 552: 517:virtual memory 433:IBM System/360 431:Main article: 428: 427:IBM System/360 425: 416: 415: 409: 404: 399: 394: 365: 364: 358: 352: 335: 305: 302: 279:General Motors 277:, produced by 211: 208: 194:and the later 184:IBM mainframes 179: 178: 176: 175: 168: 161: 153: 150: 149: 148: 147: 145:z/Architecture 142: 137: 132: 127: 122: 114: 113: 109: 108: 107: 106: 101: 96: 91: 86: 81: 76: 58: 53: 48: 43: 35: 34: 30: 29: 28:, 1952–present 26:IBM mainframes 15: 9: 6: 4: 3: 2: 3230: 3219: 3216: 3214: 3211: 3210: 3208: 3193: 3190: 3188: 3185: 3183: 3180: 3176: 3173: 3172: 3171: 3168: 3164: 3161: 3160: 3159: 3156: 3155: 3153: 3149: 3142: 3139: 3138: 3136: 3132: 3124: 3120: 3116: 3109: 3106: 3105: 3103: 3101: 3097: 3091: 3087: 3085: 3082: 3081: 3079: 3077: 3073: 3066: 3063: 3060: 3057: 3056: 3054: 3052: 3048: 3041: 3038: 3037: 3035: 3033: 3029: 3021: 3016: 3004: 3001: 2999: 2996: 2995: 2993: 2991: 2987: 2981: 2978: 2976: 2973: 2971: 2968: 2966: 2963: 2961: 2958: 2956: 2953: 2951: 2948: 2946: 2943: 2942: 2939: 2930: 2925: 2923: 2918: 2916: 2911: 2910: 2907: 2901: 2898: 2894: 2887: 2884: 2881: 2878: 2875: 2872: 2869: 2866: 2865: 2863: 2861: 2857: 2850: 2847: 2844: 2841: 2838: 2835: 2832: 2829: 2826: 2823: 2820: 2817: 2814: 2811: 2808: 2805: 2804: 2802: 2800: 2796: 2785: 2782: 2779: 2776: 2775: 2773: 2769: 2762: 2759: 2756: 2753: 2750: 2747: 2744: 2741: 2738: 2735: 2732: 2729: 2726: 2723: 2720: 2717: 2714: 2711: 2708: 2705: 2702: 2699: 2696: 2693: 2690: 2687: 2684: 2681: 2678: 2675: 2672: 2669: 2666: 2663: 2660: 2657: 2654: 2651: 2650: 2648: 2644: 2641: 2639: 2635: 2632: 2630:United States 2628: 2618: 2615: 2614: 2612: 2608: 2600: 2595: 2592: 2590: 2587: 2583: 2578: 2575: 2571: 2566: 2563: 2561: 2558: 2554: 2549: 2546: 2542: 2537: 2534: 2532: 2529: 2528: 2525: 2522: 2518: 2511: 2508: 2505: 2502: 2499: 2496: 2493: 2490: 2489: 2487: 2483: 2476: 2473: 2470: 2467: 2466: 2464: 2460: 2453: 2450: 2449: 2447: 2443: 2436: 2433: 2432: 2430: 2426: 2422: 2415: 2410: 2408: 2403: 2401: 2396: 2395: 2392: 2378: 2375: 2373: 2370: 2368: 2365: 2363: 2360: 2358: 2355: 2353: 2350: 2348: 2345: 2343: 2340: 2339: 2338: 2330: 2328: 2320: 2318: 2310: 2309: 2306: 2300: 2297: 2295: 2292: 2290: 2287: 2285: 2282: 2280: 2279: 2275: 2273: 2270: 2268: 2265: 2263: 2262: 2258: 2256: 2253: 2251: 2248: 2246: 2243: 2241: 2238: 2236: 2233: 2231: 2227: 2224: 2220: 2217: 2215: 2212: 2211: 2209: 2207: 2206: 2202: 2201: 2199: 2195: 2189: 2186: 2184: 2181: 2179: 2176: 2174: 2171: 2169: 2166: 2164: 2161: 2159: 2156: 2154: 2151: 2149: 2148:Thomas Buberl 2146: 2145: 2143: 2137: 2130: 2127: 2124: 2123:Ginni Rometty 2121: 2118: 2115: 2112: 2109: 2106: 2103: 2100: 2097: 2094: 2093:Frank T. Cary 2091: 2088: 2085: 2082: 2079: 2076: 2073: 2072: 2070: 2068: 2064: 2058: 2055: 2053: 2050: 2048: 2045: 2043: 2040: 2038: 2035: 2033: 2030: 2029: 2027: 2023: 2017: 2014: 2012: 2009: 2007: 2004: 2002: 1999: 1997: 1994: 1992: 1989: 1987: 1984: 1982: 1979: 1977: 1974: 1972: 1969: 1967: 1964: 1962: 1959: 1958: 1956: 1952: 1946: 1943: 1941: 1938: 1936: 1933: 1931: 1928: 1926: 1923: 1921: 1918: 1916: 1913: 1911: 1908: 1904: 1901: 1900: 1899: 1896: 1893: 1892: 1890: 1886: 1880: 1879:IBM Rochester 1877: 1875: 1872: 1870: 1867: 1865: 1862: 1858: 1855: 1853: 1850: 1848: 1845: 1844: 1842: 1838: 1835: 1833: 1830: 1828:, Chicago, IL 1827: 1824: 1823: 1821: 1817: 1814: 1812: 1809: 1808: 1806: 1802:, Atlanta, GA 1801: 1798: 1795: 1792: 1791: 1789: 1788: 1786: 1782: 1771: 1767: 1764: 1762: 1759: 1757: 1754: 1752: 1749: 1747: 1744: 1742: 1739: 1737: 1734: 1732: 1729: 1727: 1724: 1722: 1719: 1717: 1714: 1710: 1707: 1705: 1702: 1701: 1700: 1697: 1695: 1692: 1691: 1689: 1685: 1679: 1676: 1674: 1671: 1669: 1666: 1662: 1659: 1658: 1657: 1654: 1652: 1649: 1645: 1642: 1641: 1640: 1637: 1635: 1632: 1630: 1627: 1626: 1624: 1620: 1617: 1611: 1601: 1598: 1594: 1591: 1590: 1589: 1586: 1584: 1581: 1577: 1574: 1573: 1572: 1569: 1567: 1564: 1562: 1559: 1555: 1552: 1550: 1547: 1546: 1545: 1542: 1540: 1537: 1535: 1532: 1530: 1529:Mashup Center 1527: 1525: 1522: 1520: 1517: 1515: 1512: 1510: 1507: 1505: 1502: 1500: 1497: 1495: 1492: 1490: 1487: 1483: 1480: 1479: 1478: 1475: 1473: 1470: 1469: 1467: 1463: 1453: 1450: 1448: 1445: 1443: 1440: 1438: 1435: 1433: 1430: 1428: 1425: 1423: 1420: 1419: 1417: 1413: 1405: 1402: 1400: 1397: 1395: 1392: 1390: 1387: 1385: 1382: 1380: 1377: 1376: 1374: 1370: 1367: 1365: 1362: 1361: 1360: 1357: 1355: 1354:Power Systems 1352: 1350: 1347: 1343: 1340: 1339: 1338: 1335: 1334: 1332: 1328: 1325: 1321: 1318: 1316: 1312: 1304: 1301: 1300: 1299: 1296: 1294: 1291: 1290: 1288: 1286: 1282: 1278: 1271: 1266: 1264: 1259: 1257: 1252: 1251: 1248: 1242: 1239: 1237: 1234: 1232: 1229: 1227: 1224: 1222: 1219: 1218: 1208: 1206:0-262-16123-0 1202: 1197: 1196: 1189: 1186: 1185:0-07-050691-4 1182: 1178: 1174: 1170: 1168:0-262-02225-7 1164: 1159: 1158: 1151: 1150: 1129: 1125: 1119: 1103: 1099: 1093: 1077: 1073: 1066: 1047: 1040: 1033: 1017: 1013: 1012: 1007: 1001: 985: 978: 975:Chuck Boyer. 971: 963: 959: 955: 951: 944: 936: 932: 926: 922: 906: 902: 892: 889: 887: 884: 882: 879: 877: 874: 872: 869: 867: 864: 863: 857: 855: 851: 847: 843: 839: 835: 831: 827: 823: 819: 809: 807: 803: 799: 795: 791: 787: 783: 779: 769: 767: 763: 760:, as well as 759: 755: 751: 747: 743: 739: 735: 731: 727: 723: 719: 715: 711: 707: 703: 699: 695: 685: 682: 680: 676: 672: 671:CryptoExpress 668: 667:cryptographic 660: 656: 652: 648: 645: 642: 638: 634: 631: 628: 624: 621: 617: 613: 610: 606: 602: 598: 595: 591: 590: 589: 581: 579: 575: 566: 561: 551: 549: 545: 541: 538: 534: 530: 526: 522: 518: 514: 511: 507: 503: 498: 496: 492: 488: 484: 480: 475: 472: 466: 464: 463:address space 460: 456: 452: 448: 439: 434: 424: 422: 421: 413: 410: 408: 405: 403: 400: 398: 395: 393: 389: 386: 385: 384: 381: 379: 375: 371: 362: 359: 356: 353: 350: 347: 343: 339: 338:IBM 305 RAMAC 336: 333: 329: 325: 322: 321: 320: 315: 310: 301: 299: 294: 292: 288: 284: 280: 276: 271: 267: 263: 259: 256: 252: 247: 245: 241: 237: 233: 229: 221: 216: 207: 205: 201: 197: 193: 189: 185: 174: 169: 167: 162: 160: 155: 154: 152: 151: 146: 143: 141: 138: 136: 133: 131: 128: 126: 123: 121: 118: 117: 116: 115: 111: 110: 105: 102: 100: 97: 95: 92: 90: 87: 85: 82: 80: 77: 74: 70: 66: 62: 59: 57: 54: 52: 49: 47: 44: 42: 39: 38: 37: 36: 32: 31: 27: 23: 22: 19: 2520:Soviet Union 2276: 2259: 2240:Deep Thought 2203: 2131:(since 2020) 2099:John R. Opel 2057:Think slogan 1898:Deep Thunder 1704:Kaleida Labs 1699:AIM alliance 1384:Q System Two 1379:Q System One 1336: 1194: 1176: 1156: 1132:. Retrieved 1118: 1106:. Retrieved 1092: 1080:. Retrieved 1065: 1053:. Retrieved 1032: 1022:December 22, 1020:. Retrieved 1009: 1000: 990:December 22, 988:. Retrieved 970: 962:the original 957: 953: 943: 935:the original 925: 905: 881:IBM LinuxONE 815: 784:, including 775: 692:The primary 691: 683: 663: 587: 571: 548:time-sharing 525:OS/VS2 (SVS) 499: 476: 467: 444: 419: 417: 412:IBM System/3 397:IBM Series/1 388:IBM System/7 382: 366: 345: 342:disk storage 318: 295: 268:. The first 248: 232:vacuum tubes 225: 183: 182: 112:Architecture 25: 18: 2597: [ 2580: [ 2568: [ 2551: [ 2539: [ 2372:Typewriters 2278:Mathematica 2219:Rugby union 2158:Alex Gorsky 2125:(2012–2020) 2119:(2002–2011) 2113:(1993–2002) 2107:(1985–1993) 2101:(1981–1985) 2095:(1973–1981) 2089:(1971–1973) 2083:(1956–1971) 2077:(1914–1956) 2025:Terminology 1981:Floppy disk 1925:SkillsBuild 1888:Initiatives 1869:IBM Hursley 1843:Facilities 1494:Connections 1364:FlashSystem 1134:January 27, 675:OSA-Express 627:I/O channel 332:drum memory 236:transistors 192:7000 series 61:30XX series 46:1400 series 33:Market name 24:History of 3207:Categories 3088:See also: 2825:ILLIAC III 2743:MUSASINO-1 2638:IAS family 2421:Mainframes 2367:System/370 2362:System/360 2153:David Farr 2052:e-business 1954:Inventions 1903:Develothon 1784:Facilities 1644:Promontory 1639:Consulting 917:References 856:machines. 772:Middleware 724:lineage), 712:lineage), 643:processing 629:operations 622:operations 540:hypervisor 508:, and the 506:System/390 502:System/370 291:System/360 275:GM-NAA I/O 264:and later 202:. Current 200:System/370 196:System/360 125:System/370 120:System/360 94:System z10 79:System/390 56:System/370 51:System/360 3084:UNIVAC II 2945:305 RAMAC 2831:ILLIAC IV 2819:ILLIAC II 2778:FACOM 201 2731:MANIAC II 2428:Australia 2235:Deep Blue 2141:directors 1600:WebSphere 1539:PureQuery 1447:Selectric 1422:Blue Gene 1337:Mainframe 950:"EXEC II" 812:Emulators 794:WebSphere 782:databases 546:(CMS). A 298:IBM 7094s 251:compilers 89:System z9 3118:See also 3100:Raytheon 3065:UNIVAC I 3003:AN/FSQ-8 2998:AN/FSQ-7 2843:ILLIAC 6 2813:ILLIAC I 2725:MANIAC I 2677:JOHNNIAC 2610:See also 2317:Category 2284:IBM Plex 2139:Board of 2032:Big Blue 1832:Honolulu 1741:Merative 1726:EduQuest 1709:Taligent 1678:Research 1615:entities 1613:Business 1554:OpenQASM 1482:Cloudant 1452:ThinkPad 1375:Quantum 1323:Hardware 1315:Products 1128:Archived 1102:Archived 1076:Archived 1046:Archived 1016:Archived 984:Archived 860:See also 830:Hercules 822:UnixWare 806:software 758:MUSIC/SP 407:IBM 8100 402:IBM 3790 392:IBM 1800 370:IBM 1130 361:IBM 1620 130:S/370-XA 3151:Related 2761:Cyclone 2755:EDB-2/3 2713:SILLIAC 2671:IBM 701 2565:PS-3000 2560:PS-2000 2536:ES-2701 2435:SILLIAC 2327:Commons 2294:ScicomP 1837:Seattle 1790:Towers 1736:Lexmark 1731:Kyndryl 1673:Red Hat 1622:Current 1593:Granite 1588:Watsonx 1504:Fortran 1432:PowerPC 1359:Storage 1330:Current 1293:History 1285:History 1199:. MIT. 1161:. MIT. 1126:. IBM. 982:. IBM. 842:Solaris 838:FreeBSD 818:FLEX-ES 798:IBM Db2 744:(e.g., 708:in the 702:MVS/ESA 673:), the 651:IBM Db2 495:DOS/360 491:TOS/360 487:BOS/360 378:Fortran 324:IBM 650 262:COMTRAN 258:Fortran 222:in 1957 140:ESA/390 135:ESA/370 3143:(1943) 3110:(1953) 3108:RAYDAC 3067:(1951) 3061:(1949) 3042:(1945) 2888:(1952) 2882:(1949) 2876:(1947) 2870:(1944) 2851:(2006) 2845:(2005) 2839:(1988) 2833:(1965) 2827:(1966) 2821:(1958) 2815:(1952) 2809:(1952) 2807:ORDVAC 2786:(1964) 2780:(1960) 2763:(1959) 2757:(1957) 2751:(1957) 2745:(1957) 2739:(1957) 2737:MISTIC 2733:(1956) 2727:(1956) 2721:(1956) 2715:(1956) 2709:(1957) 2703:(1955) 2697:(1955) 2695:WEIZAC 2691:(1952) 2689:ORDVAC 2685:(1953) 2683:ORACLE 2679:(1953) 2673:(1953) 2667:(1953) 2661:(1953) 2659:AVIDAC 2655:(1952) 2653:ILLIAC 2589:Elbrus 2531:BESM-6 2512:(1964) 2506:(1957) 2500:(1956) 2494:(1957) 2485:Sweden 2477:(1949) 2471:(1954) 2454:(1955) 2452:WEIZAC 2445:Israel 2437:(1956) 2299:Unions 1910:Fellow 1721:Cognos 1694:AdStar 1687:Former 1651:Kenexa 1629:Apptio 1583:Watson 1549:Qiskit 1415:Former 1404:Condor 1394:Osprey 1369:DS8000 1203:  1183:  1165:  1108:May 8, 1082:May 5, 1055:May 5, 854:x86-64 802:Oracle 800:, and 746:Debian 718:VM/ESA 710:OS/360 706:OS/390 657:, and 537:VM/370 535:; the 521:OS/VS1 510:64-bit 504:, the 493:, and 479:OS/360 451:degree 374:EBCDIC 3059:EDVAC 3040:ENIAC 2837:CEDAR 2784:TRASK 2771:1960s 2749:EDB-1 2646:1950s 2601:] 2584:] 2572:] 2555:] 2543:] 2510:TRASK 2504:EDB-1 2475:FUJIC 2469:FACOM 2462:Japan 2197:Other 1668:Press 1661:India 1477:Cloud 1465:Other 1399:Heron 1389:Eagle 1342:IBM Z 1049:(PDF) 1042:(PDF) 980:(PDF) 897:Notes 846:macOS 834:Linux 826:Linux 734:z/TPF 726:z/VSE 722:CP-40 679:FICON 659:IPSec 605:Linux 599:IFL, 574:IBM Z 560:IBM Z 287:IBSYS 266:COBOL 3175:list 3163:list 3051:EMCC 2990:SAGE 2719:SMIL 2707:SARA 2701:DASK 2665:BESK 2548:Mars 2498:SMIL 2492:SARA 2342:FOSS 2067:CEOs 1971:DRAM 1566:SPSS 1509:ILOG 1201:ISBN 1181:ISBN 1163:ISBN 1136:2016 1110:2015 1084:2012 1057:2012 1024:2020 992:2020 848:and 786:CICS 714:z/VM 704:and 698:z/OS 647:zIIP 639:and 637:Java 633:zAAP 609:z/VM 592:CP, 572:The 346:see: 220:NACA 73:3090 69:308X 65:303X 2980:709 2975:705 2970:704 2965:702 2960:701 2955:650 2950:610 2896:IBM 2577:SVS 1277:IBM 1011:IBM 824:or 790:IMS 732:), 655:XML 641:XML 529:MVS 485:), 483:MVT 447:360 188:IBM 3209:: 2599:ru 2582:ru 2570:ru 2553:ru 2541:ru 1100:. 1044:. 1008:. 956:. 952:. 844:, 840:, 836:, 792:, 788:, 752:, 748:, 653:, 497:. 489:, 344:; 330:, 260:, 71:, 67:, 2928:e 2921:t 2914:v 2413:e 2406:t 2399:v 2228:/ 1772:) 1768:( 1269:e 1262:t 1255:v 1209:. 1187:. 1171:. 1138:. 1112:. 1086:. 1059:. 1026:. 994:. 958:1 611:) 351:) 172:e 165:t 158:v 75:) 63:(

Index

IBM mainframes
700/7000 series
1400 series
System/360
System/370
30XX series
303X
308X
3090
System/390
eServer zSeries (900, 800; 990, 890)
System z9
System z10
zEnterprise System (z196, zEC12)
IBM Z (z13, z14, z15, z16)
System/360
System/370
S/370-XA
ESA/370
ESA/390
z/Architecture
v
t
e
IBM
7000 series
System/360
System/370
mainframe computers

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.