DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-4000
|Date of introduction:||1973||Display technology:||Panaplex II|
|New price:||$139.95||Display size:||12|
|Size:||8.4" x 6.2" x 2.5"|
|Weight:||2 pounds 3 ounces||Serial No:||190728|
|Batteries:||Date of manufacture:||wk 25 year 1974|
|AC-Adapter:||120 V||Origin of manufacture:||USA|
|Precision:||12||Integrated circuits:||TMS0201, TMS0301|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download Service Manual:||(US: 9.8 MByte)|
Think about a fully loaded TI-3500 if you discover the TI-4000. This calculator give you a display width of 12 digits, a 4-key memory and the important %-function.
Due to the limited digit capabilities of the TMS0100 calculator-on-a-chip series, this 12 digit calculator uses a chip-set TMS0201, TMS0301 consisting of two 40-pin integrated circuits. The modular approach of this chip-set with seperate Data-chips (TMS02xx) and ROM-chips (TMS03xx) allowed a lot of different calculator specifications. Don't miss some other products like the SR-20, TI-500 and Canon L121F.
Everything else is similar to the predecessors.
Compare the styling of this TI-4000 with the uncommon but otherwise identical TI-410.
A more powerful desktop calculator was introduced with the TI-450.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.