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Victor 4000-Series Electronic Calculators

Victor 4900

One of the Victor 4000-Series Calculators

Victor's entry into the sophisticated programmable electronic calculator market. A series initially consisting of four machines; the 4500, 4600, 4700, and 4800, introduced in the 1972-1973 timeframe. in sometime during '74-75, a more sophisticated machine in the series was introduced, the model 4900. The 4900 offered 1792 program steps and 202 memory registers, and provided a fairly substantial selection of math functions.The machines print using a high-speed seven-pin dot-matrix impact printer. All but the 4500 provide a mag-card unit for writing/reading magnetic cards for offline program and data storage. All of the machines were microprocessor-based, using Rockwell's PPS-4 4-bit CPU and support chips.

The museum is currently looking for the model 4500, 4600, 4700, or 4800 calculators.