Sanyo CZ-8102
Brief History
Following the CX-8190, which was inspired by the pioneer Sinclair Executive, Sanyo has released several similar thin calculators. Rockwell's A4001 integrated circuit has been used in several Sanyo scientific models, so this can be found in the CZ-8102, which debuted in 1974. Its very elegant metal housing became flatter than its predecessors, because the keyboard and the main printed circuit board are common. The calculator otherwise was similar to the CX-8190. The display with large magnifying lenses made by Sanyo itself was a compromise solution: it could be read almost exactly from the front, but the displayed numbers is so big as on VFD displays.
| Manufacturer: | Sanyo Electric Co., Ltd. (Japan) |
| Mfg. date: | 1974-75 |
| Size: | 7×14,5×1,1 cm |
| Weight (ready for operate): | n.a. |
| Type: | scientific |
| Capacity: | 8 digits (input/display) 8 digits (internal precision) |
| Operating logic: | algebraic |
| CPU: | Rockwell A4001PC |
| Registers: | 2 standard (with saving the pending operation) 1 constant (with saving the pending operation) 1 memory (with aritmetic) |
| Features: | +/-change sign (direct entry of negative numbers) Ffloating-point notation Sqrsquare root pivalue of pi (3.1415..) can be recalled 1/xreciprocal trigtrigonometrical functions (sin, cos, tan and inverses: arcsin, arccos, arctan) logexponential and logarithmical functions (10- and e-base) yxraising to power |
| Display: | 9 digit LED (Sanyo SL-1952B-3) |
| Power: | 4×LR9 button cell or rechargeable battery |
| Test results: | trigonometry:result of sin-1(cos-1(tan-1(tan(cos(sin(60°)))))), reference value: 60. 62.57928 exponential:result of 0.999160000, reference value (first 14 digits): 3.0068804206375×10-70 - |
CZ-8102
Inside of the CZ-8102
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