AKA: ELSI MATE EL-428, AKA (Label): ELECTRONIC CALCULATOR EL-428, Product number (P/N): EL428 (EL-428),
Keywords/Tags: EL428 (EL-428) | 428 | ELSI MATE
Date of intro: 1981, Origin: Korea (List),
Power: 1.5V: (AA x1),
Display: Type = Display (LCD) (List), Digits = 8+1,
Number of keys: 24,
Keyboard Array (Rows x Columns): 04x06,
Classification: / Desktop with Display / Abacus,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: SHARP_docu: (Cat.) 198202 (Japanese); SHARP_docu: (Cat.) 198311 (Japanese); SHARP_parts: (Box) EL428,
Main Components: SHARP: LI3127,
Known Serial-numbers: 485 (List of all S/Ns from SHARP)
Initial Cost Price: 5500 JPY (€ 44,55), Collector value: 7.5/10,
Internet: Link-1: VIRTUAL MUSEUM OF CALCULATORS, Link-2