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 AKA: R-1 ELECTRONIC CALCULATOR, AKA (Label): R-1, Product number (P/N): R1 (R-1), 
 Keywords/Tags: R1 (R-1) |  ELECTRONIC CALCULATOR
 Date of intro: may-1971, Origin: Japan (List), Dimensions: 350x240x109mm, Weight: 5600g, 
 Power: AC, 
 Display: Type = Display (None) (List), 
 Number of keys: 22, #Key-Green: 3, #Key-Grey: 5, #Key-Red: 2, #Key-White: 12, 
 Keyboard Array (Rows x Columns): 04x07, 
 Decimal switch: [6-4-3-2-1-0], Round switch: [F-5/4-CUT], 
 Internal Printer: SHINSHU SEIKI: 102, 
 Classification:  / Desktop with Printer, 
 Featuring: Procent, Logic-technology: LSI (Large Scale Integration), calculator-chipset, Memories: 2, 
 Related with: CASIO_docu: (Instr.) R1; CASIO_docu: (Ad.) R1: Ein druckender mit allen...; CASIO_docu: (Ad.) R1: Il est certain qu'aujourd'hui...; CASIO_docu: (Broch.) R1; CASIO_docu: (Broch.) *: A brief introduction... (1972), 
 Components: 3 PCB(s), 
 Main Components: (; CASIO: 12V1B; CASIO: 12V2B; CASIO: 12VE4B; ); or; (; CASIO: 12V1C; CASIO: 12V2C; ), 
 Original Equipment Manufacturer : CASIO: R1    (List of all Export-OEM-models from CASIO), Resemblance with: SILVER-REED: SE121P, 
 Known Serial-numbers: 108822  | 409243 (List of all S/Ns from CASIO)
 Initial Cost Price: 157 000 JPY  (€ 1.271,70), Collector value: 8/10, 
 Courtesy of: CALCUSEUM (Serge DEVIDTS), 
 Info: 4 chars/s
 Internet: Link-1: COMPUTERMUSEUM DER FAKULÄT INFORMATIK Stuttgart, Link-2: LEDUDU
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