.... Integrated Circuit - P8243 by Intel, 8-bit IO expander

.... Integrated Circuit - DP8212N, 8-bit I/O port

.... Integrated Circuit - PIC16C74 A/JW by Microchip, EPROM based (3)

.... Integrated Circuit - PIC16C74 A/JW by Microchip, EPROM based

1 x Microchip PIC18F46K22-I/P 8bit PIC Microcontroller 64MHz 64 kB Flash 40-Pin

74LS74AN SIGNETICS INTEGRATED CIRCUIT X5pcs

.... Integrated Circuit - PIC16C74 A/JW by Microchip, EPROM based (2)

CD4011AE RCA INTEGRATED CIRCUIT X5pcs