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IBM PCjr - Wikipedia
IBM Personal Computer - Wikipedia
IBM PC Convertible 128K RAM Expansion
IBM PC AT: 1988 Upgrade Special! 640K RAM, Adlib etc - YouTube
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Images and notes of first generation boards
Tezza's Classic Computers Articles and Projects - Fixing a Parity RAM problem on an IBM-PC
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minuszerodegrees.net
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IBM 64-256KB Memory Expansion - Peripheral - Computing History
IBM Personal Computer - Wikipedia
Today in Apple history: IBM Personal Computer aims for Apple II
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minuszerodegrees.net
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