AKA: IC 152, Product number (P/N): 152 (IC 152),
Keywords/Tags: 152 (IC 152) | IC152 (IC 152)
Date of intro: may-1968, Origin: Japan (List),
Power: AC,
Display: Type = Display (Nixie) (List),
Number of keys: 22, #Key-Black: 8, #Key-White: 14,
Keyboard Array (Rows x Columns): 04x10, Keyboard Layout: [7] [8] [9] [1(Roman)] [2(Roman)] - [4] [5] [6] [x] [(Division)] - [1] [2] [3] - [PW] [(Sigma)I] [(Sigma)II] [AC] [KC] [0] [.] [=] [=],
Decimal switch: [0-1-2-3-4-5],
Classification: / Desktop with Display,
Featuring: Logic-technology: SSI (Small Scale Integration) / JMOS (Japanese MOS), Memories: 2,
Related with: CASIO_docu: (Ad.) *: Un genio del cálculo CASIO programa AL-1000; CASIO_docu: (Broch.) *: A brief introduction... (1972),
Serie-members: CASIO: 152 (version-1) (Black/Green); CASIO: 152 (version-2) (Beige/Black),
Known Serial-numbers: 300434 | A2149 (A 2149) (List of all S/Ns from CASIO)
Collector value: 10/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Info: First CASIO calculator with IC's.
The 152 was produced in two distinct color schemes during its production run from the late 1960s into the early 1970s.
Manufacturers at the time frequently varied casing styles to test aesthetics for modern offices or to differentiate export models.
During this transition era (1968–1972), CASIO actively experimented with design languages.
These color differences were typically driven by target market preferences (such as variations between the domestic Japanese market and North American exports).
In some instances, a cosmetic change coincided with a minor internal hardware revision,
marking a shift to updated circuit boards or newer generations of NEC MOS-IC chips.
Internet: Link-1: THE OLD CALCULATOR MUSEUM, Link-2: VINTAGE CALCULATORS Netherlands