IBM Personal Computer AT
| Also known as | IBM AT, PC/AT |
|---|---|
| Manufacturer | IBM |
| Type | Personal Computer |
| Released | August 14, 1984 |
| Lifespan | 1984–1987 |
| Introductory price | Approx. US$6,000 (equivalent to $19,400 in 2025) |
| Discontinued | April 2, 1987 |
| Units sold | >100,000 |
| Operating system |
|
| CPU | Intel 80286 @ 6 and 8 MHz |
| Memory | 256–512 KB onboard + 3.5 MB with additional memory cards |
| Storage | 20 MB hard drive 1.2 MB HD 5.25" (135 mm) floppy drive |
| Graphics | CGA, EGA |
| Input | Parallel, serial |
| Power | 120/240 VAC |
| Predecessor | IBM Personal Computer XT |
| Successor | IBM Personal System/2 |
| Related | List 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.