This document is the general reference manual for the Sharp "Micro Compet"
QT-8D Electronic Calculator .
The Sharp QT-8D was the easily portable (3.1 Pounds) electronic
calculator to utilize MOS Large Scale Integration integrated circuits
to cram all of the functionality of an 8-digit, floating decimal, four
function calculator into four chips. Sharp made history by partnering
with US integrated circuit manufacturer Rockwell, who took Sharp's
specifications for the logic of the calculator and implemented it on
the four large-scale integrated circuit devices. Sharp marketed the machine
as using Sharp's "ELSI" (Extra-Large Scale Integration) technology to
produce such a small, lightweight, and inexpensive electronic calculator
with so much capability.
Sharp QT-8D Instruction Manual
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