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 machine

Thirty years on from its original release, the best selling Sinclair ZX Spectrum is now one of the most emulated computers in the world. Far from dead and forgo