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Additional Pictures 

 

Close-up view of the TMS0301 ROM Chip used with the TI-4000.
PMOS Technology, 40-pin DIP, 512*13 Bits Instruction ROM, 11-digit Display Scanning.


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

Joerg Woerner, March 7, 2021. No reprints without written permission.