National Semiconductor 199 Handheld Electronic Calculator

This credit card-sized calculator has a metal case with twenty-three rectangular plastic keys and plastic trim. The keys include ten digit keys, a decimal point key, a total key, four arithmetic function keys, and four memory keys. In addition, the calculator has an off key, an on/clear entry/clear key, and a % key. Above the keys, on the left side, is the eight-digit LCD display. A mark below it reads: NSC National Semiconductor 199. Left of the display are three circles.

Text at the bottom of the back reads: NATIONAL SEMICONDUCTOR CORPORATION WEST JORDAN, UTAH 84084 MADE IN HONG KONG.

Compare the National Semiconductor 102C (1986.0988.308), a calculator of similar size, which has a square root key.

References:

[Advertisement], Los Angeles Times, October 28, 1979, p. AC26. On sale for $10.77, regular price $16.95. This is the NS102 (not the NS199 or the NS102C).

[Advertisement]. Eugene [Oregon] Register-Guard, August 13, 1979, p. 7A. NS199 calculator offered as part of a bank giveaway.

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