IBM AT chipset
Parts: (multiple brand) 6818, (multiple brand) 8042 (Keyboard Controller), (multiple brand) Discrete Logic, Intel 82284 (Clock Generator/Ready Interface), Intel 82288 (Bus Controller), Intel 8237A (DMA Controller), Intel 8254 (Programmable Interval Timer), Intel 8259A (Programmable Interrupt Ctrl.), Texas Instruments SN74LS612N (Memory Mapper)