Product number (P/N): 580,
Keywords/Tags: 580
Date of intro: ~1975,
Display: Type = Display (VFD) (List),
Number of keys: 20,
Keyboard Array (Rows x Columns): 04x05, Keyboard Layout: [7] [8] [9] [(Division)] [C] - [4] [5] [6] [x] [CE] - [1] [2] [3] [-] [(SquareRoot)] - [0] [.] [=] [+] [%],
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Resemblance with: (Resemblance 015_04_05_20A),
Collector value: 7/10,