DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments Galaxy 10
| Date of introduction: | 1988 | Display technology: | LCD |
| New price: | Display size: | 8 (5 + 2) | |
| Size: | 3.5" x 6.0" x 0.65" | ||
| Weight: | 4.0 ounces | Serial No: | |
| Batteries: | 2 * LR44 | Date of manufacture: | week 35 year 1988 |
| AC-Adapter: | Origin of manufacture: | Italy | |
| Precision: | Integrated circuits: | CD4816 | |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
With
the Galaxy 10 Texas Instruments introduced in France a simple calculator performing fractional
arithmetic. You can use two different modes:
 | Euklid's division: 56 / 5 = 11 (Q) 1 (R) |
| Fractional division: 56 / 5 = 11_1/5 |
With the SIMP and F-D-key you can shorten results and convert between fractional and decimal display:
| 35/70 SIMP 1/2 F-D 0.5 |
Dismantling
the Galaxy 10 reveals an internal construction identical with the TI-30
Galaxy and at first glance unknown calculator chip.
Comparing
the calculator chip with the almost identical Galaxy
Junior sold in German leads to the CD4816.
If you compare the Galaxy 10 with the Galaxy Junior, focus on the keys in the upper left corner of the keyboard.
The same difference could be found between the Galaxy 9 - Galaxy 9x and Galaxy 40 - Galaxy 40x sibblings. A similar calculator using a traditional housing could be found with the Math Explorer.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.