The Matrix’s iconic title sequences are made up of falling “digital rain”, which, upon closer inspection, was actually thousands of lines of binary code. Until now, I always assumed this ...

Modern high-speed, high-density VLSI processors and semiconductor memories are operated at low supply voltage levels and thus low logic signal the understanding of matrix code construction and design.

Once [Rupert] had the matrix codes for every button on the keyboard, he wired up a length of ribbon cable to the keyboard PCB. From there, a small breakout board provides all the connections that ...