Despite quickly becoming obsolete, the early ZX computers (ZX80 and ZX81) were a marvel of cost-benefit at the time. Most people had no access to computing of any kind... The difference between no computing and a machine that can perform thousands of operations per second is massive.
Despite quickly becoming obsolete, the early ZX computers (ZX80 and ZX81) were a marvel of cost-benefit at the time. Most people had no access to computing of any kind... The difference between no computing and a machine that can perform thousands of operations per second is massive.
This book
https://archive.org/details/Cheap_Video_Cookbook_Don_Lancast...
talks about how to build homebrew video systems similar to the ZX80.