so, you need to pwer them from the powerr suply of the computer or just control them from the computer.
if you need to power them from the computer you can get some power from the serial port, but not enough....for all the lampls to light at the same time.
if you need to control them from the computer its easy from the computer port, but if you need a circuit to dontrol the lamps, its harder, you can use a microcontroller or make a noise generator for each lamp and a flip-flop