Product number (P/N): 900,
Keywords/Tags: 900
Date of intro: 1974, Origin: USA (List), Dimensions: 140x70x25mm, Weight: 80g,
Power: 9V + Adaptor,
Display: Type = Display (LED) (List), Digits = 8+1,
Number of keys: 15,
Classification: / Pocket,
Serie-members: NATIONAL SEMICONDUCTOR: 900 (version-1) (Black label); NATIONAL SEMICONDUCTOR: 900 (version-2) (Blue label); NATIONAL SEMICONDUCTOR: 900 (version-3) (Magenta label),
Known Serial-numbers: 1049284 | 120596 (List of all S/Ns from NATIONAL SEMICONDUCTOR)
Initial Cost Price: USD39.95, Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),