|Name: A118: IBM Power 4 Computer Chip||Date: 1993||Location: box_A2|
The IBM Power 4 was a 4 processor system built from the processors in the RISC System/6000. The processors had a shared memory and a set of hardware semaphores that were accessed thru a switch chip. The switch chip was custom designed by people in the Austin Research Laboratory. This is the switch chip.