Editing Microvision (section)

==Production==
[[File:Microvision - Block Buster (1979) - Gameplay screenshot.svg|thumb|left|140px|Screenshot of Block Buster, which came packaged with the Microvision]]
Unlike most later consoles, the Microvision did not contain an onboard processor ([[Central processing unit|CPU]]). Instead, each game included its own processor contained within the removable cartridge.<ref name='hh_museum' /><ref name='simply_eighties' /><ref name='mus_obs' /> This meant that the console itself effectively consisted of the controls, [[Liquid-crystal display|LCD]] panel and LCD controller.<ref name='hh_museum' /><ref name='mus_obs' />

The processors for the first Microvision cartridges were made with both [[Intel 8021]] (cross licensed by [[Signetics]]) and [[Texas Instruments]] [[Texas Instruments TMS1000|TMS1100]] processors. Due to purchasing issues, Milton Bradley switched to using TMS1100 processors exclusively including reprogramming the games that were originally programmed for the 8021 processor. The TMS1100 was a more primitive device, but offered more memory and lower power consumption than the 8021. First-revision Microvisions needed two batteries due to the 8021's higher power consumption, but later units (designed for the TMS1100) only had one active battery holder. Even though the battery compartment was designed to allow the two 9-volt batteries to be inserted with proper polarity of positive and negative terminals, when a battery was forcefully improperly oriented, while the other battery was properly oriented, the two batteries would be shorted and overheat. The solution was to remove terminals for one of the batteries to prevent this hazard. Due to the high cost of changing production molds, Milton Bradley did not eliminate the second battery compartment, but instead removed its terminals and called it a spare battery holder.{{citation needed|date=March 2023}}