Building the program counter module for the 8-bit computer. Support me on Patreon: https://www.patreon.com/beneater You can get all the components used in this video from any online electronic components distributor for a few dollars. See https://eater.net/bbcpu8-program-counter for more. Complete parts list (everything in the program counter module): - 1x 74LS161 (4-bit synchronous binary counter) - 1x 74LS245 (Octal bus transceiver) - 4x LEDs