AKA (Label): MODEL UA 123, Product number (P/N): UA123 (UA 123),
Keywords/Tags: UA123 (UA 123) | 91S
Date of intro: ~feb-1976, Origin: Japan (List), Dimensions: 114x70mm,
Power: 6V: (AAA x4),
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)] [(-)] [%] [x<>y] - [7] [8] [9] [(Division)] [CM] - [4] [5] [6] [x] [M-] - [0] [.] [=] [+] [M+],
Decimal switch: [F-2-3-OFF],
Classification: / Pocket,
Featuring: Procent, Square root, PI, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Related with: ROYAL_docu: (Ad.) *: The keys to buying the right calculator (version-1); ROYAL_docu: (Ad.) *: The keys to buying the right calculator (version-2),
Resemblance with: IMPERIAL: 91S; TRIUMPH-ADLER: 81S (version-5), (Resemblance 033),
Serie-members: ROYAL: 91S (version-1) (Black); ROYAL: 91S (version-2) (Beige),
Known Serial-numbers: 91S004710a (91S 004710 a) | 91S013432a (91S 013432 a) | 91S040704a (91S 040704 a) | 91S046469a (91S 046469 a) | 91S69300033 (91S 69.300.033) (List of all S/Ns from ROYAL)
Collector value: 7/10,