The floppy drive controller with eight chips is for the Apple II. There
are only four more on the drive itself. After Steve Wozniak designed
them, he went to a trade show, saw a Shugart drive with over 100 chips
on it, and wondered what he had left out.
The chip count on the Apple disk drive is so low because many of the
functions are done in software. The design was later committed to a VLSI
single chip which is still used today in Macs.
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