Object Details
- Casio Computer Company
- Description
- By 1990 the American educational market for graphing calculators was highly competitive. Early that year Texas Instruments introduced its first graphing calculator for classroom use, the TI-81. A special overhead projection unit of the calculator was available, and advertisements showed a teacher displaying calculator results on a screen, with fascinated students comparing her work with the displays of their own calculators. By November, Casio sold a modified form of its FX-7000G calculator for use with an overhead projector, the OH-7000G. This is an example of that device.
- The overside handheld electronic calculator has a gray plastic case, a silver-colored metal keyboard with plastic keys, and a translucent glass display screen above the keyboard. The keys are like those of the fx-7000G. A mark above the keyboard reads: CASIO SCIENTIFIC CALCULATOR OH-7000G GRAPHICS.
- The back of the calculator has room for four batteries in a compartment at the base. The screen is at the top and there are four rectangular feet. A mark above the battery compartment reads: CASIO 0H-7000G (/) RATING: DC 6V = 0.04W (/) use BATTERY 1.5v x 4 (/) MADE IN JAPAN (/) CASIO COMPUTER CO., LTD.
- The calculator fits in a gray plastic case with a snap.
- The metal and glass projection unit, made by Buhl, fits in a blue cloth bag.
- References:
- “Introducing the TI-81 Graphics Calculator. An educated solution tailored to educational needs [advertisement],” Mathematics Teacher, vol. 83 #4, April, 1990, front matter.
- “The Power to Project Your Ideas [advertisement],” Mathematics Teacher, vol. 83 #8, November, 1990, front matter.
- Location
- Currently not on view
- Credit Line
- Gift of Jeanne Shimizu and San Juan High School
- ca 1990
- ID Number
- 2000.0146.03
- accession number
- 2000.0146
- catalog number
- 2000.0146.03
- Object Name
- electronic calculator
- Physical Description
- plastic (case; keys; carying case material)
- glass (display; projector lens material)
- metal (circuitry; platform material)
- cloth (carrying bag material)
- Measurements
- overall: 2 cm x 9 cm x 19 cm; 25/32 in x 3 17/32 in x 7 15/32 in
- place made
- Japan
- See more items in
- Medicine and Science: Computers
- Women Teaching Math
- Computers & Business Machines
- Handheld Electronic Calculators
- National Museum of American History
- Subject
- Women's History
- Record ID
- nmah_599947
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a4-25fc-704b-e053-15f76fa0b4fa
