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This is the Story of the 1970s Great Calculator Race
12-27-2018, 07:45 PM
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RE: This is the Story of the 1970s Great Calculator Race
I followed the link above to the twitter account and images:

https://twitter.com/PulpLibrarian/status...27360?s=09

What is fascinating is I hadn't heard of the 1967 "Cal tech"...

[Image: Dk5AruIXcAAIINa.jpg]

Nor.... the 1970...

[Image: Dk5BcJnWwAES1CY.jpg]

These surely were the first true battery powered "portable" calculators... solid state as well.

HP-28S (1988 US model), DM41X (2020)
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RE: This is the Story of the 1970s Great Calculator Race - edryer - 12-27-2018 07:45 PM



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