Very rarely do we see an Instructable so complete, and so
informative, that it’s a paragon of tutorials that all
Instructables should aspire to. [8 Bit Spaghetti]‘s How to Build
an 8-bit computer is one of those tutorials. [8 Bit Spaghetti]‘s
build began on his blog. He originally planned to build a 4-bit
computer but decided a computer that could only count to 15
would be too limiting. The build continued by programming an
NVRAM as the ROM on a breadboard and finally testing his bundle
of wires. What really makes [8 Bit Spaghetti]‘s special is the
Instructable – he covers just about all the background
information like the definition of a Turing machine, a brief
introduction to electronics and logic chips, and binary numbers.
Even though he’s doing some fairly complicated work, [8 Bit
Spaghetti]‘s tutorial makes everything very clear. The computer
isn’t quite done yet – there’s still a few nixie tubes to add –
but we couldn’t imagine a better project for the budding
electronic hacker.