EDN

4-bit Single Chip CMOS Microcomputer

The 4508 Group is a 4-bit single-chip microcomputer designed with CMOS technology. Its CPU is that of the 4500 series using a simple, high-speed instruction set. The computer is equipped with two ...
Wired

BBC unveils final Micro:Bit computer design

Designed and funded with a partnership of 29 companies, including ARM, Barclays, Microsoft, Samsung, Freescale and Nordic Semiconductor, the Micro:Bit device will act as an introduction to computer ...
EDN

Building a 4-Bit Computer: The Instruction Set

The registers inside the CPU, the machine code instruction set, and the ways in which the instructions interact with the registers and status flags are all intertwined. As you may recall, one of my ...
Hackaday

micro bit

The BBC Micro:bit, while not quite as popular in our community as other microcontroller development boards, has a few quirks that can make it a much more interesting piece of hardware to build a ...