Ken Shirriff's blog
Computer history, restoring vintage computers, IC reverse engineering, and whatever
Silicon die teardown: a look inside an early 555 timer chip
›
If you've played around with electronic circuits, you probably know the 555 timer integrated circuit, 1 said to be the world's be...
7 comments:
Christmas shopping the IBM way: computerized gift selection in 1962
›
In 1962, the Simpson's department store in Toronto used an IBM computer to help customers select Christmas gifts, based on the charact...
3 comments:
Reverse-engineering a tiny 1980s chip that plays Christmas tunes
›
For the holidays, I decapped a chip that plays three Christmas melodies. The UM66T melody chip from the 1980s was designed for application...
10 comments:
Yamaha DX7 chip reverse-engineering, part 4: how algorithms are implemented
›
The Yamaha DX7 digital synthesizer (1983) was the classic synthesizer in 1980s pop music. It uses two custom digital chips to generate sou...
12 comments:
Yamaha DX7 reverse-engineering, part III: Inside the log-sine ROM
›
The Yamaha DX7 digital synthesizer (1983) was the classic synthesizer for 1980s pop music. It used two custom digital chips to generate so...
8 comments:
‹
›
Home
View web version
