DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-4000
| Date of introduction: | 1973 | Display technology: | Panaplex II |
| New price: | 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 |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner | |
| Download Service Manual: | 
(US: 9.563 kB) |
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: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.