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APF: 1920
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AKA: MARK 1920, AUTO SHUT OFF, AKA (Label): MARK 120, LIQUID CRYSTAL CALCULATOR, Product number (P/N): 1920,
Keywords/Tags: 1920 | MARK 1920
Date of intro: ~1979, Origin: Hong Kong (List),
Power: 3V: (G13 x2),
Display: Type = Display (LCD) (List),
Number of keys: 25, #Key-Brown: 8, #Key-Orange: 5, #Key-White: 12,
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Related with: APF_docu: (Broch.) *: BRINLOCK; APF_docu: (Instr.) 1920; APF_parts: (Box) 1920,
Serie-members: APF: 1920; APF: 2201; APF: 3550,
Known Serial-numbers: 340240 | 378583 (List of all S/Ns from APF)
Collector value: 7/10,
Internet: Link-1: SMITHSONIAN MUSIC

Item

Created: 14-may-2011, Manual-update: 23-jan-2020, Batch-update: 25-nov-2022             

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