Ibm pc at

(“Advanced Technology”) A version of the IBM PC, released in Aug 1984 with an Intel 80286 processor, a 16-bit bus, a medium-speed hard disk and a 1.2 megabyte floppy disk drive. It had a larger case than the PC, which allowed it to accept “tall cards”.
The AT keyboard corrected the PC’s non-standard placement of the return and left shift keys but shortened the backspace key, making it harder to reach.


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  • Ibm pc xt

    computer An IBM PC with a (slow) hard disk. The XT was released in March 1983. It had an Intel 8088 CPU. The XT/370, released in October 1983, added IBM 370 mainframe emulation, and the XT 286 followed in September 1986 with an Intel 80286 CPU [Why?]. (1996-05-21)

  • Ibm pcjr

    computer (IBM PC Junior) A floppy disk-based home computer with an Intel 8088 CPU and a chiclet keyboard, released in November 1983. The PCjr could be expanded to have two floppy drives and 640 kilobytes of RAM using sidecars. Some even had a mouse and could run drawing programs with popup menus. (1995-10-06)

  • Ibm systems engineer

    job (SE) A software person from IBM. (1998-07-08)

  • Ibmtr

    International Bone Marrow Transplant Registry

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