AKA: MARK 28, AKA (Label): MODEL NO: MARK 28, Product number (P/N): 28,
Keywords/Tags: 28 | MARK 28
Date of intro: ~1975, Origin: Japan (List),
Power: 9V, Adaptor: APF_adaptors: 710; APF_adaptors: 751S,
Display: Type = Display (VFD) (List), Digits = 8+1,
Number of keys: 19,
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Known Serial-numbers: J003989 (J 003989) | J021163 (J 021163) (List of all S/Ns from APF)
Collector value: 7/10,