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Additional Pictures 

 

The Little Professor introduced in 1980 uses a small keyboard 
to fit all 5 keyrows in the limited space of the original keyplate. 
The key spacing is identical to the TI-1010 keyboard.

The printed circuit boards (PCB's) of the Little Professor manufactured in 1978 (left) and 1980 (right)
are almost identical. The smaller keyboard of the later Little Professor is obvious.

Close-up view of a TMC1993 from a Little Professor (1978)
manufactured in January 1980.

 
Close-up view of a TMC1993 from a Little Professor (1980)
manufactured in September 1980.


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

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