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In page Robert Moog:

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Moog debuted the instrument at the 1964 Audio Engineering Society convention in New York.[2] It was much smaller than other synthesizers, such as the RCA Synthesizer introduced a decade earlier, and much cheaper, at US$10,000, as compared to the six-figure sums of other synthesizers.[2] Whereas the RCA Synthesizer was programmed with punchcards, Moog's synthesizer could be programmed with knobs and patch cables and played via keyboard, making it attractive to musicians.[2] New Scientist described it as the first commercial synthesizer.[8] At this time, Moog and then Fred Cochran constructed the so-called Moogtonium for the composer Max Brand. It is still operational and exhibited in the Langenzersdorf_Museum near Vienna (Austria).[citation needed]