Simon (1978) was built around a Texas Instruments TMS 1000 microcontroller - one of the first consumer products to ship with embedded processor logic at scale.
Ralph Baer (Magnavox Odyssey creator) reverse-engineered Atari's Touch Me (1974) arcade cabinet and identified the core flaw: terrible audio feedback and boring visual design. His team (Morrison, Cope, Kapps) rewrote the game loop in assembly, mapped the four sequences to bugle harmonic tones (G, C, E, A) so any random pattern would be musically consonant, and moved from arcade cabinet to handheld PCB.
Patent filed 1977 (US 4,207,087), granted 1980. Milton Bradley licensed it, redesigned the enclosure from rectangular box to circular saucer (better ergonomics for radial button layout), and launched May 15, 1978 at Studio 54 for $24.95 (~$120 today).
Sold millions in the first holiday season. Spawned variants: Super Simon (1979, two-player mode), Pocket Simon (1980, miniaturized), Simon Squared (double-sided PCB), Simon Air (motion sensors), Simon Optix (wearable AR version).
Technical legacy: proved that single-chip microcontroller toys could hit mass market profitability. TMS 1000 had 1KB ROM, 256 bits of RAM, and ran at ~400kHz - absurdly constrained by modern standards but enough to drive pattern generation, tone synthesis, and input validation in real time.
Original units are now in Smithsonian and Strong Museum collections. Hasbro still ships updated versions with LED matrices and Bluetooth, but the core game loop hasn't changed in 47 years.
Ralph Baer (Magnavox Odyssey creator) reverse-engineered Atari's Touch Me (1974) arcade cabinet and identified the core flaw: terrible audio feedback and boring visual design. His team (Morrison, Cope, Kapps) rewrote the game loop in assembly, mapped the four sequences to bugle harmonic tones (G, C, E, A) so any random pattern would be musically consonant, and moved from arcade cabinet to handheld PCB.
Patent filed 1977 (US 4,207,087), granted 1980. Milton Bradley licensed it, redesigned the enclosure from rectangular box to circular saucer (better ergonomics for radial button layout), and launched May 15, 1978 at Studio 54 for $24.95 (~$120 today).
Sold millions in the first holiday season. Spawned variants: Super Simon (1979, two-player mode), Pocket Simon (1980, miniaturized), Simon Squared (double-sided PCB), Simon Air (motion sensors), Simon Optix (wearable AR version).
Technical legacy: proved that single-chip microcontroller toys could hit mass market profitability. TMS 1000 had 1KB ROM, 256 bits of RAM, and ran at ~400kHz - absurdly constrained by modern standards but enough to drive pattern generation, tone synthesis, and input validation in real time.
Original units are now in Smithsonian and Strong Museum collections. Hasbro still ships updated versions with LED matrices and Bluetooth, but the core game loop hasn't changed in 47 years.