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Old Calculator Museum Advertising & Documentation Archive

Early Advertisement for the Wang Laboratories 700A Calculator

An early advertisement for the new Wang 700A Electronic Calculator

This is a relatively early advertisement for the Wang 700A calculator published a few months after the calculator was generally available for purchase by customers.

After the Wang 700 was announced in February of

That was a long time for potential customers to wait...a fact that Hewlett Packard and other high-end electronic calculator manufacturers were actively exploiting to sell their calculators to now-former Wang Labs customers who needed more power than Wang's second generation 200 and 300-series calculators could manage.

The statement in the advertisement that the Wang 700A was the "

In fact, a secret showing by Hewlett Packard executives of a pre-production HP 9100A calculator to Dr. An Wang, the CEO/President of Wang Laboratories in March of 1968 was the impetus that drove Wang Laboratories to develop the Wang 700. The Hewlett Packard calculator that Dr. Wang was shown was vastly superior to any of Wang Laboratories' extremely lucrative line of existing calculators. Had HP not given Dr. Wang a rather serious wake-up call, Wang Labs could have been caught seriously off-guard, potentially losing the long-standing position it enjoyed as the producer of the highest-capability line of advanced calcualtors available.

The now-dubbed model "700A" had as much magnetic core memory as some small minicomputers, allowing up to 960 steps of program storage, and up to 248 memory storage registers. With advanced math functions that execute at speeds that exceed those of subroutines to calculate the same functions on small minicomputers (minicomputers couldn't calculate things like Logarithms or Square Roots directly and had to have a program written to perform such calculations), The 700A also operated in floating point decimal mode natively, where small computer systems generally operated in fixed-point binary, meaning that the computers would have to have routines written to perform binary floating point math as well as routines to input and output the binary numbers in floating point decimal form that humans could understand. With these advantages, as well as a substantial set of programming instructions, the 700A could actually out-compute small minicomputer systems in certain situations, and even though very expensive for an electronic calculator, was much less expensive than entry-level minicompuer systems at the time.

See the exhibit for the top-of-the-line Wang 700-series calculator, the Wang 720C for more information. Or for more background on the general history of Wang Laboratories' electronic calculators, see the Old Calculator Museum's Article on Wang's calculator (and calculator-based custom-systems) evolution.