what is a microvision
The Microvision is the first handheld game console that used interchangeable cartridges. It was released by the Milton Bradley Company in November 1979.[1] The Microvision was designed by Jay Smith, the engineer who would later design the Vectrex gaming console. The Microvision's combination of portability and a cartridge-based system led to moderate success, with Smith Engineering grossing $15 million in the first year of the system's release.