This book takes the reader through the design and implementation of the Sinclair ZX Spectrum's custom chip, revealing for the first time the decisions behind it

First published in 1982, William Tang’s Spectrum Machine Language for the Absolute Beginner is generally considered to be the best introduction to 8-bit machi

The ZX Spectrum was created as a computer for the masses rather than the classes. A follow-up to the hugely successful Sinclair ZX81, the Speccy - as it affecti