DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1000 (silver)
| Date of introduction: | 1978 | Display technology: | LED-stick |
| New price: | $9.77 | Display size: | 8 |
| Size: | 5.4" x 2.8" x
1.3" 138 x 72 x 32 mm3 |
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| Weight: | 3.0 ounces, 84 grams | Serial No: | |
| Batteries: | 9V | Date of manufacture: | wk 43 year 1978 |
| AC-Adapter: | AC9180 | Origin of manufacture: | USA |
| Precision: | Integrated circuits: | TMC1992 | |
| Memories: | |||
| Program steps: | Courtesy of: | Joerg Woerner | |
| Download manual: | 
(US: 0.8 MByte) |
While
the original TI-1000 introduced in June 1977 sports a
golden trim around the keyboard, changed Texas Instruments the design in Summer
1978 to a silver-gray finish.
Dismantling
both generations of the TI-1000 reveals a surprise! The
earlier model uses a layout similiar to the TI-30,
the later model looks inside like a TI-50.
The picture shows on the left a TI-1000 manufactured in 1977, the TI-1000 on the
right was assembled two years later.
A
minor difference could be recognized even with the single-chip calculator
circuits used in the TI-1000. Some early calculators use a TMC1991 chip, the
featured TI-1000 is centered around a TMC1992.
Calculators with different nameplates were sold from Western Auto as Citation.
The technology of the early TI-1000 was choosen for the Little Professor (1978), too.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 4, 2002. No reprints without written permission.