The Sharp Compet 32 is a follow-on machine to Sharp's first electronic
calculator to utilize early bipolar integrated circuits, the Sharp Compet 31
(CS-31A). The Compet 32 adds a two-key square root function, and an
additional accumulating memory register to the capabilities of the
Compet 31. The CS-32A has a capacity of 16 digits, clearly displayed
on its multiplexed Nixie tube display. It uses fixed or floating decimal logic,
with a knob on the keyboard panel to select the decimal point location, with
selections for truncation and rounding operation, and for full floating decimal.
The machine uses a single type of early bipolar TTL integrated
circuit (made by Mitsubishi), a Quad 2-Input NAND gate (used with negative
logic as NOR gate), and large number of discrete transistors and diodes,
and a small magnetic core memory array (18 x 16) for storage of working
registers (Four 18-digit registers; input register[X], operand register[Y],
Memory 1 and Memory 2).
Sharp Compet 32 Specifications
Manufacturer:
Hayakawa Electric Co., Ltd. (Sharp)
Model Number:
CS-32A (Compet 32)
Manufactured In:
Japan
Date of Introduction:
1966
Display Technology:
Nixie Tube, 16 Digits, Multiplexed
Logic Technology:
Mix of early TTL small-scale IC's and discrete diode/transistor logic
Sharp corporation 
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