Acorn Z80
Second
Processor
On the Z80 board are 30 ICs, about a dozen capacitors (excluding the decoupling capacitors attached to every IC), 8 resistors, 3 diodes, a crystal, a fuse and a voltage regulator.
The three largest ICs are, from left to right, the Acorn Tube ULA made by Ferranti, the Tube boot ROM, a 2716 EPROM, and the Z80 processor, which is a Mostek part in this particular board.
