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Additional Pictures 

 

The TI-78 and the never released TI-78P Prototype side by side.

This TI-78P Prototype was manufactured in August 1989 by Toshiba in Japan.

The TI-78P Prototype dismantled.

The rechargeable battery pack of the TI-78P Prototype.

The Intel 8088 compatible microprocessor of the TI-78P Prototype.

The EPROM with 64k Bytes capacity.

The Mystery ROM.

The pairs of S-RAM with 32k Bytes, each.

The ASIC of the TI-78P Prototype.

The RTC (Real Time Clock) of the TI-78P.

 


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

© Joerg Woerner, October 30, 2019. No reprints without written permission.