DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1000 (gold)
|Date of introduction:||June 1977||Display technology:||LED-stick|
|New price:||$9.77, £6.95||Display size:||8|
|Size:|| 5.4" x 2.8" x
138 x 72 x 32 mm3
|Weight:||3.0 ounces, 84 grams||Serial No:|
|Batteries:||9V||Date of manufacture:||wk 38 year 1977|
|AC-Adapter:||AC9180||Origin of manufacture:||USA (LTA)|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 0.8M Bytes)|
The stylish TI-1000 series was introduced 1977 together with the TI-1025 and TI-1050 as a cheaper alternative to the upcoming LCD-calculators. If someone counts generations on the early TI-calculators, this one is from the third generation:
|• 1st generation: The famous Datamath alias
• 2nd generation: The TI-1200 line
• 3rd generation: The TI-1000 line
Within one or two years after introduction of the TI-1000 the end of LED calculators was reached. Modern LCD-calculators outdated them due to their long battery life and thinner shape. Compare this LED calculator with the first TI LCD calculator, the TI-1750.
this TI-1000 manufactured in September 1977 in Lubbock, TX reveals an internal
design very similar to the TI-30
introduced in 1976. The main electronics of the calculator fits on a small
printed circuit board (PCB), while the keyboard assembly and battery are
connected with a few wires to the PCB.
This early TI-1000 is centered around a TMC1991 single-chip calculator circuit, a close relative to the TMC0970 used with the TI-1200 but highly optimized for cost savings of electronic calculators and educational products like the Little Professor.
Please note that later models of the TI-1000 feature a silver trim around the keyboard instead the earlier golden design. More - and surprising - differences could be found inside the two TI-1000 calculators.
Calculators with different nameplates were sold from Western Auto as Citation.
Don't miss the educational game "Spass mit Zahlen" based on the TI-1000.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, January 4, 2002. No reprints without written permission.