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Sharp CSA-12 "Memorizer 60" Sales Invoice


Sharp CSA-12 "Memorizer 60" Programmer Sales Invoice, October, 1977

The CSA-12 Memorizer 30 and 60 Programmer accessories for the Sharp Compet 22, Compet 32, Compet 33, and Compet 50 calculators, were introduced by Sharp in the fall of 1968, and had an introductory price of $305.56 for the 30-step Memorizer 30, and $444.44 for the 60-step Memorizer 60. It is interesting to note that a mere 9 1/2 years later, the Memorizer 60 was worth 1/10th that amount. This is a sign of the rapid advancement in electronics technology over that period of time.

Sadly, it appears that Cooper Office Equipment, Inc. in Memphis, Tennessee, that sold the Memorizer 60 in Oct., 1977, no longer exists. The building that it occupied is now home to a restaurant.