Now that I finally have almost settled in after making a big move, I can finally play some games. I don't have loads of money, so I generally either rent a game (that I can finish in one or two ...

The PS and PS2 use a modified full duplex serial port with a 250 kHz clock signal for the controllers. The Gamecube uses a modified N64 half-duplex serial interface, right down to the 3.8 us timing.