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Uchida Yoko USAC 10B Desktop Calculator
Uchida Yoko USAC 10B
The USAC 10B is the first of a series of four different desktop electronic calculators developed and marketed by Uchida Denshi Kogyo Co., Ltd. (later Uchida Yoko Co., Ltd.). Uchida Yoko was (and still is) a large Japanese multi-faceted manufacturing and marketing company involved in numerous businesses, including billing machines and small office small computers, office furniture, scientific equipment for educational institutions, mechanical adding machines, office supplies, and, for a short time, electronic calculators. The USAC 10B calculator was the company's first entry into the electronic calculator market, and was introduced sometime in June of 1967. It is advertised as the world's first all-IC desktop electronic calculator, though this claim is certainly debatable. The 10B is a basic four-function office calculator, with a single accumulator-style memory register. Capacity is 10 digits, with a Nixie tube display. It appears to operate with keyboard pushbutton-selectable fixed decimal position. Follow-on calculators included the USAC 10R, the USAC 22R, and the USAC-22B. The Old Calculator Web Museum would like to acquire any of these models. If you have any information, documentation, or photos of any of Uchida Yoko's calculators, please contact the museum by clicking on the EMail button in the menubar at the top of this page.| Manufacturer: | Uchida Denshi Kogyo Co., Ltd. (Uchida Yoko) |
| Model Number: | USAC 10B |
| Manufactured In: | Japan |
| Date of Introduction: | June, 1967 |
| Display Technology: | Nixie Tube, 10 Digits |
| Logic Technology: | Early small-scale bipolar IC's |
| Digits of Capacity: | 10 |
| Decimal Modes: | Fixed via pushbutton(?) |
| Math Functions: | Four Function |
| Memories: | One accumulator-style memory register |
| Constant: | Yes. Unclear if available for addition/subtraction |
| Performance: | Addition/Subtraction: 1ms; Multiplication/Division: 20ms |
| Size: | 13" wide, 16" deep, 8" high |
| Weight: | 20 pounds |