Texas Instruments Little Professor (1980)

Date of introduction:  1980 Display technology:  LED-stick
New price:   Display size:  8
Size:  5.0" x 3.5" x 1.15"
 127 x 89 x 29 mm3
Weight:  3.7 ounces, 106 grams Serial No:  
Batteries:  9-Volt  Date of manufacture:  wk 31 year 1981
AC-Adapter:   Origin of manufacture:  Italy
Precision:   Integrated circuits:  TMC1993
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 3.7M Bytes)

Prof_78_1010.jpg (27277 Byte)From the technology this Little Professor from 1980 is similar to the TI-1000 calculator of the same epoch but uses the smaller keyboard of the TI-1010 slimline LCD-calculators. 

LittleProf_78_PCB.jpg (85765 Byte)
LittleProf_RCI3981_Back.jpg (66475 Byte)The internal design of this Little Professor (1980) is more or less identical to the second iteration of the Little Professor (1978) introduced two years earlier. The picture on the right compares both printed circuit boards (PCBs).

Compared to the first version of the Little Professor this one could easily recognized at the [ON], [OFF] keys and the [LEVEL] key to adjust the grade level. Compare it with the Little Professor (1976).

LittleProf_RCI3981_P1.jpg (179443 Byte)Two years later the Little Professor received a LCD instead the old fashioned LED display. View both versions introduced in the United States and United Kingdom.

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Joerg Woerner, October 2, 2002. No reprints without written permission.