: Contains over 140 illustrations and circuit diagrams, making it a guide for electronics hobbyists or students interested in retro-computing.
The ZX Spectrum ULA is not a great piece of engineering by the standards of robustness or orthogonality. It is a great piece of design by the standards of constraint . It answers the question: "What is the absolute minimum silicon required to put color graphics, sound, and keyboard I/O into a machine that costs less than a month’s rent?" : Contains over 140 illustrations and circuit diagrams,
The competition was building machines with dozens of off-the-shelf chips. Texas Instruments and Commodore had budgets that dwarfed Sinclair’s. To compete, Altwasser knew he couldn’t follow the rules. He had to break the computer down to its absolute essence. It answers the question: "What is the absolute
The book provides a deep dive into the reverse-engineered design of the Ferranti ULA, stripping it down to transistor-level schematics to explain how it integrated various computer functions into a single cost-effective chip. He had to break the computer down to its absolute essence