The Explorer’s Guide to the ZX-81 and Timex Sinclair 1000

The Explorer’s Guide to the ZX-81 and Timex Sinclair 1000
Author(s): Mike Lord
Date: 1982

Reviews

About 60 pages of usable insider information (Interrupts, video, block diagram) and 60 more of somewhat undocumented Basic sample programs. The insider stuff does look helpful and a few schematics are provided (16K RAM, PIO, relay driver). This book just might fill in some facts missed elsewhere.

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