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
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
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 0.8 MByte)

TI-1000S_PCB.jpg (369582 Byte)TI-1000S_BACK.jpg (404239 Byte)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. 

TI-1000_1.jpg (62192 Byte)Dismantling both generations of the TI-1000 reveals a surprise! The earlier model uses a layout similar 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.

TI-1000S_IC.jpg (113194 Byte)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 chosen for the Little Professor (1978), too.


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Joerg Woerner, January 4, 2002. No reprints without written permission.