Serial Peripheral Interface (SPI) is not really a protocol, but more of a general idea. It’s the bare-minimum way to transfer a lot of data between two chips as quickly as possible, and for t… ...

The Apple Z80 card was to run CPM, the 6502 was used too, but only for I/O. Gimix offered a serial and a parallel port that each had its own CPU. I have a 512K print spooler with a Z80, ...

If the 8-bit 1MHz MOS Technology 6502, designed by Chuck Peddle in 1975, doesn’t trip off the tongue to the average Internet user, its influence on computing history is still immense.

"6502 Professional Development System," software by Human Engineering System (HES) for the VIC-20 microcomputer, consists of one cassette and an instruction booklet in the original box. Location ...