DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-33
| Date of introduction: | 1977 | Display technology: | LED-stick |
| New price: | Display size: | 8 (5 + 2) | |
| Size: | 5.8" x 3.1" x
1.4" 148 x 78 x 36 mm3 |
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| Weight: | 4.0 ounces, 114 grams | Serial No: | 148362 |
| Batteries: | BP8 | Date of manufacture: | wk 48 year 1977 |
| AC-Adapter: | AC9900/R | Origin of manufacture: | Italy |
| Precision: | 11 | Integrated circuits: | TMC0984 |
| Memories: | 3 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
Funny
calculator, that TI-33. This one was made for Europe and there is no equivalent
on the US market. How could this happen ? Long time ago, German's teacher
decided that the perfect AOS-entry system is too advanced for the pupil. Texas
Instruments reacted and cut out the internal memory they used for the pending
operations. As a small gift the TI-33 got three memories, labeled with M1, M2
and M3. Please don't ask why you need three memories on such a basic
school-calculator.
From the technical aspects the TI-33 is nothing else than a TI-30 with a different calculator chip (TMC0984 instead the TMC0981). In Europe the calculator was sold with a rechargeable battery installed, for schools a huge charging station with 20 places was available.
Simply by comparing the designation of the integrated circuits of the entry line "Majestic" calculators, you'll get the all members of this family:
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• TMC0980
Goulds
Pumpulator uses a custom design ROM (CD9801) Digging deeper into the TMC098x calculator chips you'll locate an OEM-chip used on a TI-30 "clone" manufactured in Hong Kong: • TMC0985 Amelia Scientific 2001 |
View another European variant of the TI-30, the colourful TI-15. According to Texas Instruments the TI-33 was available till 1978.
AOS™ is a trademark of Texas Instruments.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.