People talking about booting things on Turing machines might enjoy this recent one from Ken Shirriff on the Minuteman III missile's guidance system. It has NO RAM and uses serial processing, reading ...
[Scott Baker] is at it again and this time he has built a 4-bit single board computer based on the Intel 4004 microprocessor. In the board design [Scott] covers the CPU (both the Intel 4004 and 4040 ...