The Z88 is organized around four integrated circuits: the Z80 microprocessor, a specialized gate-array called 'Blink', the ROM chip and a pseudo-static RAM chip. There are 8 connectors on the motherboard. This part describes the pinout, the usage and modifications if they are possible.

• Integrated circuits
• Z80 CPU (IC1)
• RAM (IC2)
• ROM (IC3)
• Blink gate-array (IC4)
• Connectors
• Slot connector
• Expansion port
• Serial port
• Keyboard connectors
• LCD connector
• External hardware via slot connector
• Flash EPROMs.

The following pages will detail each of the above.