• Thumbnail for IBM System/4 Pi
    The IBM System/4 Pi is a family of avionics computers used, in various versions, on the F-15 Eagle fighter, E-3 Sentry AWACS, Harpoon Missile, NASA's...
    15 KB (1,611 words) - 21:40, 6 June 2025
  • Thumbnail for IBM System/360 Model 91
    ASC-15B on the Titan Family, IBM GDC on Gemini, IBM LVDC on Saturn 1B/5, IBM System/4 Pi-EP on the MOL, and the IBM System/4 Pi-TC 1 on the Apollo Telescope...
    11 KB (1,096 words) - 09:27, 27 January 2025
  • refer to: IBM System/4 Pi, a family of avionics computers 4Pi microscope, a microscope that uses interference and fluorescence computers 4×π = 12.56637...
    585 bytes (81 words) - 13:03, 11 February 2025
  • Thumbnail for IBM System/360
    The IBM System/360 (S/360) is a family of mainframe computer systems announced by IBM on April 7, 1964, and delivered between 1965 and 1978. System/360...
    83 KB (8,931 words) - 04:31, 25 May 2025
  • Personal System/2 laptop IBM System/3 IBM System/4 Pi IBM Office System/6 IBM System/7 IBM System/23 IBM System/32 IBM System/34 IBM System/36 IBM System/38...
    3 KB (360 words) - 20:27, 20 September 2022
  • Thumbnail for STS-1
    four primary general purpose IBM System/4 Pi computers (GPCs) failed to provide correct timing to the backup flight system (BFS) when the GPCs were scheduled...
    49 KB (5,834 words) - 12:28, 14 May 2025
  • ICL System 4 Not-released Unix system between UNIX System III and UNIX System V STS-4 (Space Transportation System-4), the Space Shuttle mission IBM System/4...
    565 bytes (93 words) - 11:34, 10 June 2023
  • chips become the mainstay of modern computer memory systems. IBM System/4 Pi. IBM ships its first System/4Pi computer, designed to meet U.S. Department of...
    217 KB (24,520 words) - 13:29, 30 April 2025
  • Thumbnail for Magnetic-core memory
    use for mission-critical and high-reliability applications in the IBM System/4 Pi AP-101 (used in the Space Shuttle until an upgrade in early 1990s,...
    41 KB (5,527 words) - 18:16, 6 June 2025
  • Thumbnail for IBM System/370
    The IBM System/370 (S/370) is a range of IBM mainframe computers announced as the successors to the System/360 family on June 30, 1970. The series mostly...
    99 KB (7,314 words) - 19:41, 25 May 2025
  • Thumbnail for List of IBM products
    IBM 7340: IBM 7070/IBM 7074 hypertape (7074 only) IBM 7400: IBM 7070/IBM 7074 Printer IBM 7500: IBM 7070/IBM 7074 Card Reader IBM 7501: IBM 7070/IBM 7074...
    189 KB (19,566 words) - 19:34, 30 May 2025
  • the IBM 1401. It is most well known as the primary programming language of IBM's midrange computer product line, including the IBM i operating system. RPG...
    37 KB (3,529 words) - 08:42, 24 February 2025
  • Thumbnail for Skylab
    customized version of the TC-1 computer, a version of the IBM System/4 Pi, itself based on the System 360 computer. The TC-1 had a 16,000-word memory based...
    112 KB (12,664 words) - 03:14, 6 June 2025
  • Thumbnail for IBM Personal Computer AT
    The IBM Personal Computer AT (model 5170, abbreviated as IBM AT or PC/AT) was released in 1984 as the fourth model in the IBM Personal Computer line,...
    30 KB (2,765 words) - 07:04, 23 May 2025
  • Thumbnail for IBM Naval Ordnance Research Calculator
    The IBM Naval Ordnance Research Calculator (NORC) was a one-of-a-kind first-generation (vacuum tube) computer built by IBM for the United States Navy's...
    10 KB (1,028 words) - 07:36, 1 December 2024
  • IBM MQ. The products that are included in the MQ family are IBM MQ, IBM MQ Advanced, IBM MQ Appliance, IBM MQ for z/OS, and IBM MQ on IBM Cloud. IBM MQ...
    20 KB (2,491 words) - 21:03, 24 November 2024
  • Thumbnail for Raspberry Pi
    Raspberry Pi (/paɪ/ PY) is a series of small single-board computers (SBCs) developed in the United Kingdom by the Raspberry Pi Foundation in collaboration...
    211 KB (18,911 words) - 22:19, 5 June 2025
  • Thumbnail for Expansion card
    with the CP/M operating system, the 50-pin expansion slots of the original Apple II computer from 1977 (unique to Apple), IBM's Industry Standard Architecture...
    22 KB (2,742 words) - 19:48, 22 May 2025
  • File System (JFS) is a 64-bit journaling file system created by IBM. There are versions for AIX, OS/2, eComStation, ArcaOS and Linux operating systems. The...
    12 KB (1,309 words) - 16:07, 28 May 2025
  • PL/I (category IBM software)
    pronounced /piː ɛl wʌn/ and sometimes written PL/1) is a procedural, imperative computer programming language initially developed by IBM. It is designed...
    97 KB (12,071 words) - 06:33, 31 May 2025
  • Thumbnail for History of computing hardware (1960s–present)
    second generation computers from those vendors are: the IBM 1401, the IBM 7090/7094, and the IBM System/360; the Burroughs 5000 series; the UNIVAC 1107; the...
    54 KB (4,985 words) - 10:51, 24 May 2025
  • implemented as the Generalized Information Retrieval Language System (GIRLS) on an IBM System/360 in 1965 by Don Nelson and Dick Pick at TRW, whose government...
    31 KB (3,378 words) - 11:24, 6 May 2025
  • Thumbnail for Spectral test
    (1981), "3.3.4: The Spectral Test", The Art of Computer Programming volume 2: Seminumerical algorithms (2nd ed.), Addison-Wesley. IBM, System/360 Scientific...
    10 KB (1,239 words) - 01:59, 18 January 2025
  • school. Everything changes one day when his friends introduce him to the IBM System/360 mainframe and he becomes "hooked", changing his major to computer...
    10 KB (1,390 words) - 18:30, 23 May 2025
  • Thumbnail for Chronology of computation of π
    Pi (approximately 3.14159265358979323846264338327950288) is a mathematical sequence of numbers. The table below is a brief chronology of computed numerical...
    42 KB (1,673 words) - 18:03, 6 June 2025
  • Thumbnail for Approximations of π
    Approximations for the mathematical constant pi (π) in the history of mathematics reached an accuracy within 0.04% of the true value before the beginning...
    87 KB (12,075 words) - 15:08, 31 May 2025
  • Thumbnail for Sierra (supercomputer)
    Sierra (supercomputer) (category IBM supercomputers)
    upgraded with IBM Power System AC922 nodes. Sierra is composed of 4,474 nodes, 4,284 of which are compute nodes. Each node has 256GB of RAM, 44 IBM POWER9 cores...
    5 KB (357 words) - 21:45, 19 May 2025
  • Thumbnail for Code page 437
    Code page 437 (redirect from IBM 437)
    227 (E3hex) is identified by IBM as Greek "Pi Small" [U+03C0, π] but is sometimes rendered in OEM fonts as Greek capital pi [U+03A0, Π] or the n-ary product...
    50 KB (3,161 words) - 15:42, 23 April 2025
  • Thumbnail for Instructions per second
    to the MIPS measure used internally by IBM to rate its mainframe servers (zSeries, IBM System z9, and IBM System z10). Weighted million operations per...
    64 KB (3,321 words) - 17:50, 27 May 2025
  • Microcontrollers operating within embedded systems (such as the Raspberry Pi, Arduino, and other similar systems) do not always have internal hardware to...
    30 KB (1,630 words) - 09:42, 28 April 2025