IBM Personal Computer AT
IBM Personal Computer AT (IBM PC AT)
IBM Personal Computer AT/370
Models
| Model | Memory | Diskette Drive | Harddisk Drive | Adapter Cards |
|---|---|---|---|---|
| 099 | 20 MB | |||
| 239 | 512 kB | 1 x 5.25" HD | 30 MB | |
| 319 | 512 kB | 1 x 5.25" HD | 30 MB | |
| 339 | 512 kB | 1 x 5.25" HD | 30 MB |
Operating Systems
PC DOS
- PC DOS 3.0 (Aug 1984)
- PC DOS 3.1 (Mar 1985) required for IBM PC Network
- PC DOS 3.2 (Apr 1986) 3.5" DD floppy support
- IBM DOS 3.3 (1987) 3.5" HD floppy support
- IBM DOS 4.0 (Jul 1988)
- IBM DOS 5.0 (Jun 1991)
OS/2
- IBM Operating System/2 Standard Edition Version 1.0, 1.1, 1.2, 1.3
- IBM Operating System/2 Extended Edition Version 1.0, 1.1, 1.2, 1.3
| Display Adapter | Memory | PM | BVH |
|---|---|---|---|
| IBM Monochrome Display Adapter | 4 KB | - | BVHMPA.DLL |
| IBM Color Graphics Adapter | 16 KB | IBMCGA.DLL | BVHCGA.DLL |
| IBM Enhanced Graphics Adapter | 64 KB | IBMCGA.DLL | BVHEGA.DLL |
| IBM Enhanced Graphics Adapter /w Graphics Memory Expansion Card | 128 KB | IBMEGA.DLL | BVHEGA.DLL |
| IBM PS/2 Display Adapter | >64 KB | IBMVGA.DLL | BVHVGA.DLL |
Publications
- Guide to Operations for the IBM Personal Computer AT (6280066)
- Hardware Maintenance and Service for the IBM Personal Computer AT (1502242)
- IBM Personal Computer AT Technical Reference