DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1788 III
|Date of introduction:||1984||Display technology:||LCD|
|New price:||Display size:||8|
|Size:||3.9" x 2.3" x 0.3"|
|Weight:||1.6 ounces||Serial No:||10108034|
|Batteries:||2*LR43||Date of manufacture:||mth 09 year 1985|
|AC-Adapter:||Origin of manufacture:||Taiwan (C)|
|Precision:||8||Integrated circuits:||Toshiba T6798S|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(DE, GB: 1.4 MByte)|
TI-1788 III combines the clock and stopwatch function
known from the TI-1788 II with a
currency rate calculator. Compared with the TI-1790
introduced about 6 years earlier size and weight was reduced dramatically.
Dismantling the TI-1788 III reveals a single-chip calculator circuit supported only by the display and a small buzzer for the alarm. We know the Toshiba T6798S already from the Canon LC-64T.
The TI-1788 III provides in the pouch even a small table to calculate the time in 19 other time zones.
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© Joerg Woerner, October 10, 2003. No reprints without written permission.