Razer 221 has a new mouse.
The mouse is an external input device of the computer, and it is also an indicator of the vertical and horizontal coordinate positioning of the computer display system, so it is named because it looks like a mouse (RTHK is the mouse). Its standard name should be "Mouse" and its English name is "mouse". The use of the mouse is to make the operation of the computer easier and faster, instead of the tedious instructions of the keyboard.
the mouse was invented by Douglas Engelbart, Ph.D., University of California, Berkeley, in 1964. At that time, Douglas Engelbart worked in the Stanford Research Institute (SRI), which was sponsored by Stanford University. Douglas Engelbart had long considered how to make the operation of the computer easier and what means to replace the tedious instructions input by the keyboard. When applying for a patent, his name was the X-Y position indicator of the display system.
The mouse is a commonly used computer input device, which can locate the cursor on the current screen and operate the screen elements at the position where the cursor passes through through buttons and wheel devices. The ancestor of the mouse appeared in 1968, and American scientist Douglas Englebart made the first mouse in California.