The RCA “COSMAC” CDP1802 microprocessor was one of the earliest CMOS microprocessors, introduced in 1976. Compared to the contemporary NMOS microprocessors, the 1802 was slower, but consumed much less power. This project contains an implementation of a CPU core in VHDL (cosmac.vhdl) which is object-code compatible with the CDP1802.
What’s the difference between the CDP1861 and the COSMAC flea 1861 PIXIE?
The CDP1861 Pixie display chip is rarer than hens’ teeth and is almost impossible to find. (it is rumored to be composed of rare Unobtainium) But that is a problem no longer with the COSMAC FLEA 1861 Pixie Replacement module. It is plug-compatible and performs the same functions.
What’s in a COSMAC instruction manual?
An Instruction Manual contains user information and building information for the kit form, as well as a parts list, schematics and other info. See below for books, booklets, and other manuals. And software. The COSMAC FLEA comes pre-built (by professional, qualified technicians), or as a kit for those more adventurous.
What is COSMAC flea a compendium of 1802 retrotechnology?
The COSMAC FLEA A Compendium of 1802 RetroTechnology covers a wide range of historical and archival information about the 1802 and the computers and devices it was used in. This information was gathered from websites across the InterWebs and compiled for your edification.
