DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-65 Technical Analyst
| Date of introduction: | 1987 | Display technology: | LCD |
| New price: | $80.00 (SRP 1988) | Display size: | 10 + 2 |
| Size: | 3.5" x 5.7" x 0.8" | ||
| Weight: | 4.0 ounces | Serial No: | |
| Batteries: | 2*LR44 | Date of manufacture: | wk 13 year 1988 |
| AC-Adapter: | Origin of manufacture: | Italy | |
| Precision: | 13 | Integrated circuits: | CD4805, CD4806 |
| Memories: | 1-16 | ||
| Program steps: | 100-0 | Courtesy of: | Joerg Woerner |
| Download leaflet: | 
(US: 1.1M Bytes) |
The
TI-65 Technical Analyst is a quite interesting calculator
within the Galaxy-line. In addition to the functions of e.g. a TI-37
Galaxy it adds both programmability and a timer function. The resolution of
the timer is one second, the maximum time before an overflow occurs about 40
hours.
From the technology use this calculator is a unique composition:
| • Housing similar to the Galaxy
• Keys like the later TI-68 • Calculator chips from Texas Instruments, not Toshiba |
Dismantling
this TI-62 Galaxy manufactured in July 1987 by Texas Instruments in Rieti, Italy
reveals a rather complex design based on a two TP0485 Microcontroller used in a
Primary-Secondary Architecture known from the second generation
slanted TI-60 calculator introduced in the
same year.
Compare this calculator with the silver TI-62
Galaxy using a silver housing.
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, December 5, 2001. No reprints without written permission.