IBM PC 5150 Revision A vs Revision B

· David Farquhar · Oct. 27, 2026, 11:35 a.m.
retro computing BIOS computer history IBM PC 5150 Revision A
Summary
The blog post examines the differences between the Revision A and Revision B BIOS of the IBM PC 5150, highlighting the historical context of the changes made on October 27, 1982.
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