DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-53
| Date of introduction: | 1985 | Display technology: | LCD |
| New price: | Display size: | 8 (5 + 2) | |
| Size: | 5.8" x 2.8" x 0.85" | ||
| Weight: | 3.5 ounces | Serial No: | |
| Batteries: | 2*LR44 | Date of manufacture: | wk 38 year 1985 |
| AC-Adapter: | Origin of manufacture: | Italy | |
| Precision: | 11 | Integrated circuits: | TP0323 |
| Memories: | 1 | ||
| Program steps: | 32 | Courtesy of: | Stefan Klaes |
This
TI-53 looks somewhat odd. If you compare it with the TI-55-III
you notice that one line of keys is missing. Remember again the TI-55-II,
the first calculator available in the slanted housing. The advantage of the
TI-55-II compared with the slimline calculators like the original TI-53
was the bigger display and the extra line of keys. And now this one !
The
electronics and the display of the slimline calculator in the slanted housing.
Hard to understand but on the production line in 1985. Please notice that the
TP0323 first generation C-MOS
single-chip calculator was introduced already in 1978.
In 1986 Texas Instruments changed the design of the "2nd generation slanted
calculators" slightly. If you compare this TI-53 introduced already in 1985
with the later TI-53 (1986) concentrate yourself on
the position of the TI logo.
Don't miss the rare TI-40, introducing the missing keys.
Another off member in the second generation slanted family is the BA-III.
If you are interested in the calculating accuracy of scientific calculators don't miss the Calculator forensics.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 4, 2004. No reprints without written permission.