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IBM PC 5150

IBM PC · 1981

The original IBM PC, and the machine whose architecture the industry still runs on. IBM built it in a year from bought-in parts and published the technical reference, including the BIOS listing — which let Compaq and everyone after it build compatibles and took the standard out of IBM's hands. Cassette port, five slots, and a keyboard that outlasts everything. The foundation of the whole platform.

As catalogued

Maker
IBM
CPU
Intel 8088-4.77
Memory
16K, 64K, 256K, 640K
Board issues
16K-64K planar, 64K-256K planar
Regions
US, UK, Europe
Chassis
desktop, five expansion slots, a cassette port nobody used
OS
IBM PC DOS 1.0 / Cassette BASIC in ROM

Chips

3
CPU
Intel 8088, Intel 8088-2, NEC V20, Intel 80286, Intel 80C88
FPU
Intel 8087, Intel 80287
BIOS ROM
BIOS 04/24/81, BIOS 10/19/81, BIOS 10/27/82

In this collection

3
RH-57W5IBM PC 5150 Motherboard · 64K-256K planar RH-F1BWIBM PC 5150 Computer · UK · 1981 RH-ZN79IBM PC 5150 Computer · 64K-256K planar · UK · 1981
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