Sharp ELSI-802 (EL-802)
We can see how the Rockwell-Sharp collaboration, which had shown a truly revolutionary technological advantage just three years earlier, was at a disadvantage to domestic and foreign manufacturers using “single-chip” calculator circuits, which have already manufactured by MOSTEK and Texas Instruments at the time: the first pocket calculators with these chips appeared as soon as 1971. Rockwell focused on more advanced (scientific, financial etc.) calculators, and Sharp was able to maintain its prestigious position by relying on the domestic market, which is slowly leaving the American background industry behind.
The EL-802, which was much cheaper than the “high-end category”, came out in 1973, and although it was capable for only the four basic operations, it was built only from Japanese parts.
Manufacturer: | Sharp Corporation (Japan) |
Mfg. date: | 1973 |
Size: | 10,5×17,7×5,4 cm |
Weight (ready for operate): | n.a. |
Type: | four-function |
Capacity: | 8 digits (input/display) 8 digits (internal precision) |
Operating logic: | arithmetic |
CPU: | Hitachi HD3276P |
Registers: | 2 standard (with saving the pending operation) 1 constant (with saving the pending operation) |
Features: | Ffloating-point notation |
Display: | 9 digit VFD (9×ISEDEN DG10Q1) |
Power: | 6×AA battery or adaptor |