Computers & Business Machines

Imagine the loss, 100 years from now, if museums hadn't begun preserving the artifacts of the computer age. The last few decades offer proof positive of why museums must collect continuously—to document technological and social transformations already underway.
The museum's collections contain mainframes, minicomputers, microcomputers, and handheld devices. Computers range from the pioneering ENIAC to microcomputers like the Altair and the Apple I. A Cray2 supercomputer is part of the collections, along with one of the towers of IBM's Deep Blue, the computer that defeated reigning champion Garry Kasparov in a chess match in 1997. Computer components and peripherals, games, software, manuals, and other documents are part of the collections. Some of the instruments of business include adding machines, calculators, typewriters, dictating machines, fax machines, cash registers, and photocopiers


-
fx-7000GA Owner's Manual
- Description
- This small paperback book describes the operation of the Casio fx-7000GA graphing calculator. The undated publication is well illustrated. The calculator shown closely resembles the Casio fx-7000G, an example of which is 2000.0146.01. Both that calculator and the manual were used at San Juan High School in Citrus Heights, California.
- Location
- Currently not on view
- date made
- ca 1990
- maker
- Casio Computer Company
- ID Number
- 2000.3037.01
- nonaccession number
- 2000.3037
- catalog number
- 2000.3037.01
- Data Source
- National Museum of American History
-
Casio fx-7000GA Handheld Electronic Calculator
- Description
- This is an example of a slightly later version of the Casio fx-7000G graphing calculator introduced by Casio in 1985. The sides of the calculator are black plastic, with a metal keyboard and back. As with earlier calculators, it includes a ten-digit array of keys for entering numbers, a decimal point key, four arithmetic function keys, a delete (clear entry) key, and an all clear key. In addition, it has keys for a wide array of mathematical functions, including square roots, squares, logarithms, natural logarithms, inverses, sines, cosines, tangents, powers, and roots. It is also possible to use the keys in “shift” and “alpha” modes to carry out different functions or enter alphabetic characters. One also may enter programs in a programming language devised by Casio and graph functions, either over a predetermined range or over a range set by the user.
- Both programs and results appear on a liquid crystal display that is behind the keyboard.The display could show sixteen characters in each of eight lines. A mark behind the display reads: CASIO SCIENTIFIC CALCULATOR fx-7000GA GRAPHICS. The on/off switch is on the left side. A mark on the back reads: CASIO fx-7000GA (/) RATING: DC 9V 0.04W (/) use BATTERY CR2032 x 3 (/) MADE IN JAPAN (/) BM CASIO COMPUTER CO., LTD. A bar code sticker attached to the back of the calculator reads: SAN JUAN HIGH SCHOOL LIBRARY.
- The calculator is stored in a black plastic sleeve marked: CASIO
- For a related manual, see 2000.3037.01.
- In addition to requiring less power, the Casio fx-7000GA had a slightly larger type font on its keys and used a keyboard that was in shades of gray rather than silver. In the fx-7000GA, keys for finding estimated values using a regression formula are found in a different mode. In other words, the keys designed for multiplication and division are used somewhat differently.
- Location
- Currently not on view
- date made
- ca 1990
- maker
- Casio Computer Company
- ID Number
- 2000.0146.02
- accession number
- 2000.0146
- catalog number
- 2000.0146.02
- Data Source
- National Museum of American History
-
Casio OH-7000G Handheld Electronic Calculator
- 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
- date made
- ca 1990
- maker
- Casio Computer Company
- ID Number
- 2000.0146.03
- accession number
- 2000.0146
- catalog number
- 2000.0146.03
- Data Source
- National Museum of American History
-
Casio fx-7000G Handheld Electronic Calculator
- Description
- This is an example of the first commercially sold handheld graphing electronic calculator, introduced by Casio in 1985. The sides of the calculator are black plastic, with a metal keyboard and back. As with earlier calculators, it includes a ten-digit array of keys for entering numbers, a decimal point key, four arithmetic function keys, a delete (clear entry) key, and an all clear key. In addition, it has keys for a wide array of mathematical functions, including square roots, squares, logarithms, natural logarithms, inverses, sines, cosines, tangents, powers, and roots. It is also possible to use the keys in “shift” and “alpha” modes to carry out different functions or enter alphabetic characters. One also may enter programs in a programming language devised by Casio and graph functions, either over a predetermined range or over a range set by the user.
- Both programs and results appear on a liquid crystal display that is behind the keyboard.The display could show sixteen characters in each of eight lines. A mark behind the display reads: CASIO SCIENTIFIC CALCULATOR fx-7000G GRAPHICS. The on/off switch is on the left side. A mark on the back reads: CASIO fx-7000G (/) RATING: DC 9V 0.07W (/) use BATTERY 3.0V x 3 (/) MADE IN JAPAN (/) BM CASIO COMPUTER CO., LTD. A bar code sticker attached to the back of the calculator reads: SAN JUAN HIGH SCHOOL LIBRARY.
- The calculator is stored in a black plastic sleeve marked: CASIO.
- For a slightly later form of the calculator, the Casio fx-7000GA, see 2000.0146.02.
- For a related manual, for the fx-7000GA, see 2000.3037.01.
- Location
- Currently not on view
- date made
- ca 1985
- maker
- Casio Computer Company
- ID Number
- 2000.0146.01
- accession number
- 2000.0146
- catalog number
- 2000.0146.01
- Data Source
- National Museum of American History
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