DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-50
|Date of introduction:||June 11, 1978||Display technology:||LCD|
|New price:||$35||Display size:||8 (5 + 2)|
|Size:|| 5.3" x 2.9" x
134 x 74 x 9 mm3
|Weight:||2.9 ounces, 82 grams||Serial No:||2970248|
|Batteries:||2*LR44||Date of manufacture:||wk 19 year 1979|
|AC-Adapter:||Origin of manufacture:||USA|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 7.1 MBytes)|
The TI-50 was the first US-built slimline scientific calculator from Texas Instruments. It used a low-power CMOS integrated circuit manufactured by TI instead the Toshiba circuit in the previous TI-25. Another big advantage of the TI design was the great AOS system with up to 3 pending operations within 15 parantheses.
Manufacturing cost of the slimline models was not too high,
the whole calculator uses one flexible printed circuit board (Flex-PCB) with the integrated
circuit and a LCD-module. You won't find any soldering or usage of screws within
If you are interested in the calculating accuracy of scientific calculators don't miss the Calculator forensics.
The keyboard is similar to the SR-40 or TI-1200 designs and they suffer all from the same problem of bouncing.
Simply by comparing the designation of the integrated circuits of the calculators you'll get the first members of the slimline family:
An example of the Basic slimline series:
Don't miss the rare Business Card, probably the missing calculator using one of the TP032x chips.
In 1984 the era of the slimline calculators was over and Texas Instruments introduced a family of three calculators manufactured in Taiwan:
The TI-50 was introduced together with a dozen other products by Texas Instruments at the Summer Consumer Electronics Show, June 11-14. Don't miss the original press release.
We discovered recently with the Sharp EL-503 a scientific calculator with the TP0327 single-chip calculator circuit, closing the missing link between the TP0326 located in the TI-38 and the TP0328 known from the Jeppesen Sanderson avstar. Don't miss the Radio Shack EC-497.
The powerful scientific calculator that retains memory contents even when turned off.
Provides over 60 functions, including statistics and the most commonly used logarithmic and trigonometric operations. Two fully arithmetic memories, plus TIs Constant Memory* feature which allows both to retain stored data, whether the unit is turned on or off. Saves continuously used constants, values, and statistical data.
© Texas Instruments, 1981
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© Joerg Woerner, December 5, 2001. No reprints without written permission.