Texas Instruments TI-1200 Handheld Electronic Calculator

Description
This handheld electronic calculator has a black plastic case and a metal keyboard. It has an array of nineteen rectangular black plastic keys. These includes ten digit keys, a decimal point key, a total key, four arithmetic function keys, a clear key, a clear entry key, and a percentage key. The on/off switch is on the left edge. A mark above the keys reads: TI-1200.
A mark above the keyboard on the left reads: TEXAS INSTRUMENTS. Behind the keyboard is an eight-digit LED display.
A jack for a power outlet is along the back edge. A sticker on the back reads: US PAT 3819921 AND OTHER PATS PENDING (/) TEXAS INSTRUMENTS (/) TI-1200 (/) Serial No. 2583849. The sticker indicates that the calculator should be recharged using an AC9180 adapter/charger. It also reads in part: ASSEMBLED IN USA. Below the sticker is a compartment for a nine-volt battery. A mark below it reads: 3276 LTA.
Unscrewing four screws in the back reveals the display and a chip. A mark on the chip reads: TMS0972NL (/) ZA0348. This is a TMS0972 chip.
The calculator comes in a cardboard box. The box has prices listed on it of 12.76, $10.50., and 7.99. A slip in the box describes the terms of the Texas Instruments warranty, effective June 13, 1976.
Location
Currently not on view
date made
1976
maker
Texas Instruments
Physical Description
plastic (case; keys material)
metal (keyboard; circuitry material)
paper (box; warranty material)
Measurements
overall: 1 1/4 in x 2 1/8 in x 5 1/4 in; 3.175 cm x 5.3975 cm x 13.335 cm
ID Number
1986.0988.074
catalog number
1986.0988.074
accession number
1986.0988
Credit Line
Gift of John B. Priser
See more items in
Medicine and Science: Computers
Handheld Electronic Calculators
Computers & Business Machines
Data Source
National Museum of American History, Kenneth E. Behring Center

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