2015: (1) PS/2 Keyboard (2) PC RS232 interface for file storage (3) 64k RAM memory upgrade (4) Composite video output upgrade (5) 5 volt PSU upgrade
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Updated
Oct 4, 2023 - Assembly
2015: (1) PS/2 Keyboard (2) PC RS232 interface for file storage (3) 64k RAM memory upgrade (4) Composite video output upgrade (5) 5 volt PSU upgrade
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