Casio AL-1000 Technology
Architecture, Memory & Speed
- 14 displayed digits, 1 sign digit and one decimal position digit = 16 digit word
- Digits encoded as 4-bit BCD, digit-serial processing over 4-bit internal bus
- Core memory, 4 registers x 16 digits x 4 bits = 256 cores
- @@kHz master clock, @@mS core cycle, @@mS full-number time
Ten double-sided boards plug into a hand-wired backplane.
The AL-1000 has been magnificently reverse-engineered, documented and analysed by Brent Hilpert.
He took his site down in 2017 and it does not appear to have been relocated. This is a great pity, his site contained a wealth of information and had been of enormous help to many in the vintage technology community. A copy of his AL-1000 reverse engineering is available in the Casio Data section.