Computer Circuitry

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The KDF9 computer was built in England in 1964
by the ENGLISH ELECTRIC Co LTD. Its circuitry consisted of
bakelite boards with holes drilled through to a single layer
of printed circuit.

IBM System 360 circuitry in 1967 used ...

IBM System 370 circuitry in 1975 ...

Amdahl 5860 circuitry in 1985 ...

VLSI circuitry

Another microprocessor.