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Sharp Compet 32 (CS-32) Desktop Calculator
Sharp Compet 32 (Model CS-32A)
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).| 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 |
| 22 Mitsubishi M2340 TTL Quad 2-In NAND gate IC's, 317 Transistors, 1200 Diodes | |
| Small magnetic core memory array (18x16, 288 bits) for working register storage | |
| Digits of Capacity: | 16 |
| Decimal Modes: | Floating or fixed at rotary switch-selectable locations |
| Math Functions: | Four Function plus two-key Square Root |
| Memories: | Two accumulator-style memory registers |
| Clock Frequency: | 100 KHz |
| Performance: | Addition/Subtraction: 28ms; Multiplication: 325ms |
| Division: 335ms; Square Root: 320ms | |
| Size: | 12 1/4" wide, 16" deep, 4 1/2" high |
| Weight: | 14.5 pounds |
| Power consumption: | 20 Watts |
| Advertising: | Sharp Compet 32 Marketing Brochure |