DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments Collegiate
| Date of introduction: | 1988 | Display technology: | LCD |
| New price: | $60.00 (SRP 1988) | Display size: | 10 + 2 |
| Size: | 5.7" x 3.1" x 0.8" 145 x 78 x 20 mm3 |
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| Weight: | 5.7 ounces, 154 grams | Serial No: | A001 |
| Batteries: | 2*SR44 | Date of manufacture: | mth 09 year 1988 |
| AC-Adapter: | Origin of manufacture: | Taiwan (I) | |
| Precision: | 10 | Integrated circuits: | |
| Memories: | 5 | ||
| Program steps: | Courtesy of: | Joerg Woerner | |
| Download manuals: | 
(US: 12.1 MByte)
(US-QR: 0.2 MByte) |
The
Collegiate doesn't look like a calculator developed by Texas Instruments.
The calculator uses a remarkable foldable keyboard with two
different function layers. You can either view the 15 built-in constants and 30
English-Metric conversions or the Two-variable statistics.
Even
the internal construction of the calculator keeps the secret of the manufacturer.
Running
Mike Sebastian's "Calculator forensics"
gives a common result of 8.99999863704.
We know this number from a lot of Toshiba calculator chips.
In other countries an identical calculator was distributed as SC-10 while Radio Shack sold the very similiar EC-4025.
Don't miss the Personal Banker, one of the best calculators developed ever.
Interested in foldable calculators? Canon introduced already in 1980 with the Canon card F-72 a remarkable product.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, September 10, 2008. No reprints without written permission.