The computer mouse was invented in 1967 and was called an “X-Y Position Indicator.” It cost $300.
Engelbart applied for a patent in 1967 and received it as an assignor of SRI for the wooden shell with two metal wheels (see U.S. Patent 3541541) in 1970, describing it in the patent application as an “X-Y position indicator for a display system.” “It was nicknamed the mouse because the tail came out the end,” Engelbart revealed about his invention.