EMG HUNOR 121B
Brief History
From 1976, EMG (Factory for Electronic Measuring Instruments) started to replace all models of calculators
with simplified and therefore cheaper versions. The Hunor Hunor 121 was replaced by the 121B.
The Texas-made IC was replaced by a NEC chip with less functions, so the keyboard was totally redesigned.
| Manufacturer: | Elektronikus Mérőkészülékek Gyára (Hungary) |
| Mfg. date: | 1977-79 |
| Size: | 18,2×20,8×5,9 cm |
| Weight (ready for operate): | 964 g |
| Price: | HUF 9.240 (EMG, 1977) |
| Type: | four-function desktop |
| Capacity: | 12 digits (input/display) 12 digits (internal precision) |
| Operating logic: | arithmetic |
| CPU: | NEC uPD284C |
| Registers: | 2 standard (with saving the pending operation) 1 constant (with saving the pending operation) 1 memory (with arithmetic and auto-summation) |
| Features: | %calculation with percent RVexchange registers (X-Y) Fixfixed-point notation: the listed decimals can be chosen (0, 2, 4) |
| Display: | 12+1 digit VFD (13×NEC LD8035) |
| Power: | 220V AC |
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