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IBM Personal Computer AT information


IBM PC/AT (System Unit 5170)
Also known asIBM AT, PC/AT
ManufacturerIBM
TypePersonal Computer
Release dateAugust 14, 1984; 39 years ago (1984-08-14)[1]
Introductory priceApprox. US$6,000 (equivalent to $18,400 in 2023)
DiscontinuedApril 2, 1987[2]
Units sold100,000+
Operating system
  • IBM PC DOS 3.0+
  • OS/2 1.x
  • PC/IX 1.1
  • IBM & SCO Xenix
  • Windows 1.0–3.1
CPUIntel 80286 @ 6 and 8 MHz
Memory256 KB – 512 KB onboard + 3.5 MB with additional memory cards
Storage20 MB hard drive
1.2 MB HD 5.25" (135 mm) floppy drive
GraphicsCGA, EGA
InputParallel, serial
Power120/240 VAC
PredecessorIBM Personal Computer XT
SuccessorIBM PS/2 Model 30 286
RelatedList of IBM Personal Computer models

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, following the IBM PC/XT and its IBM Portable PC variant. It was designed around the Intel 80286 microprocessor.

  1. ^ Somerson, Paul (1984-11-13). "AT the Party". PC Magazine. p. 123. Retrieved 2014-07-05.
  2. ^ "IBM PC AT at Vintage Computer". Archived from the original on 2020-08-22. Retrieved 2010-10-20.

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