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Additional Pictures 

 

The TM 990/301 Microterminal side by side with the TI-30 calculator.

Dismantling the TM 990/301 Microterminal reveals a complex 
printed circuit board (PCB) based around a TMS1000 microcomputer.


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

Joerg Woerner, September 19, 2003. No reprints without written permission.