DATAMATH  CALCULATOR  MUSEUM

Additional Pictures 

 

This TI-55 was manufactured in May 1980 by
Texas Instruments in Abilene, TX (Date code ATA 1980 » wk 19 yr 1980).

The complete electronics of the TI-55 fits onto the display board. 

An early prototype of the TI-55 misses the date code
on the single-chip calculator circuit.

The electronics of the TI-57 Programmable 
looks more or less identical.


horizontal rule

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

© Joerg Woerner, July 5, 2002. No reprints without written permission.