Graphics Reference
In-Depth Information
Fig. 1.1
The Xerox optical mouse chip in its injection-molded dual-inline package (DIP) of clear
plastic, with pins stuck into a conductive packaging foam. The bond wires connecting the chip's
pads to the lead frame are (barely) visible
Fig. 1.2
The Winter 1982 Xerox World internal magazine cover featuring the Electronics Division
and their three-button mechanical and optical mouse developments, among other electronic devel-
opments. The three-button mouse shipped on SmallTalk and Lisp machines, but the 8010 and 6085
office systems used a two-button version [
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