Could Chinese spies covertly insert malicious chips into computer circuit boards sold in the United States to the military, Apple, and Amazon?

Steve Wozniak’s handwritten schematics and programming instructions for a prototype of the Apple II home computer sold on December 23. But for how much, and who is the buyer?

A set of schematics and programming instructions for a prototype version of the Apple II home computer recently sold for $630,272 from RR Auction, the company said today. The documents were ...

Dubbed the Colossus, the vacuum tube-based computer was built using all that remained — photographs and fragments of some circuit board schematics — after the original 10 machines were ...