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Texas Instruments TI-5100

Date of introduction:  January, 1976 Display technology:  Fluorescent
New price:  $54.95, DM 198.00
 $40 (October, 1981)
Display size:  10
Size:  7.8" x 7.5" x 2.5"    
Weight:  1 pound 3 ounces or 
 2 pounds 1 ounces
Serial No:  9396085
Batteries:   Date of manufacture:  wk 50 year 1981
AC-Adapter:  AC9171, AC9900/G Origin of manufacture:  USA
Precision:  10 Integrated circuits:  TMC1073
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

Introduced in parallel with the successful TI-5040 this non-printing desktop calculator had a rather long lifespan of roughly 5 years. A similar model with a 12 digits display was introduced one year later with the TI-5200.

TI-5100_USA_PCB.jpg (132591 Byte)The TI-5100 was manufactured both in USA and Netherlands. The European model we discovered uses different electronics. 
The TMS1073 of the famous TMS1000 Microcomputer family calculator chip inside the TI-5100 was later used with the Toshiba BC-1015.

The differences in the weight result from an "optional" metal plate inside the calculators to give a more stable feedback of the keyboard entries. 

About 8 years later we got the TI-5100 II with a much sleeker housing.

 



If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, December 5, 2001. No reprints without written permission.