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AKA (Label): MODEL 1020, Product number (P/N): 1020,
Keywords/Tags: 1020
Date of intro: 1977, Origin: Japan (List), Dimensions: 118x74x20mm, Weight: 120g,
Power: 3V: (AA x2) + Adaptor,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 27, #Key-Black: 13, #Key-Blue: 3, #Key-White: 11,
Keyboard Array (Rows x Columns): 06x05, Keyboard Layout: [CI] [C] - [(SquareRoot)] [(Pi)] [x²] [1/x] [M OUT] - [7] [8] [9] [M+] [M-] - [1] [2] [3] [+] [-] - [0] [.] [(-)] [=] [%],
Miscellaneous switch: [CHG-OFF-ON],
Classification: / Pocket,
Featuring: Procent, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Components: 19 ... 7 Capacitor(s), 5 Diode(s), 4 Resistor(s), 1 Transistor(s), 1 IC(s),
Main Components: SHARP: LI2013,
Resemblance with: ROYAL: 1020, (Resemblance 033), Made by: OMRON (List of all Import-OEM-models for IMPERIAL),
Known Serial-numbers: 69932479 | 69937556 (List of all S/Ns from IMPERIAL)
Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE TECHNOLOGY, Link-2: VINTAGE CALCULATORS WEB MUSEUM
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