M-4

:See M-4 multitronic unit for the failed computer unit by this same name.
M-4 was the designation for a robot constructed by Flint. It served as his ", housekeeper, gardener, and guardian." The robot hovered in the air and was capable of firing a type of heat beam. 
It was destroyed by Spock firing a type 2 phaser at it in 2269 and was immediately replaced by a second unit: "Too useful a device to be without, really". ()
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Category:Artificial lifeforms