AKA: DIGITAL DIARY, SF-4000, Product number (P/N): SF4000 (SF-4000),
Keywords/Tags: SF4000 (SF-4000) | DIGITAL DIARY
Date of intro: 1988, Origin: Japan (List), Dimensions: 145x125x70mm, Weight: 136g,
Power: 6V: (CR2025 x2) + 3V: (CR2025 x1),
Display: Type = Display (LCD) (List), Digits = 16: (x6),
Number of keys: 88,
Classification: / Pocket / Organizer, PDA,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Original Equipment Manufacturer : CASIO: SF4000 (List of all Export-OEM-models from CASIO), Resemblance with: RADIO SHACK: EC319,
Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: OLD ORGANIZERS COLLECTION, Link-2