Click the right mouse button. The mouse is the external input device of the computer and the indicator of the vertical and horizontal coordinate positioning of the computer display system, so it is named because it looks like a mouse. Its standard name should be "Mouse" and its English name is "mouse". The mouse was invented by DouglasEngelbart in 1964. At that time, douglas engelbart worked at the Stanford Research Institute (SRI), an institution sponsored by Stanford University. Douglas Engelbart has been thinking for a long time about how to make the operation of the computer easier, and what means to replace the tedious instructions entered by the keyboard. In the early 1960s, when attending a meeting, he took out a notebook (not a laptop) that he carried with him and drew a sketch of a device that used two wheels with vertical bottoms to track movements. This was the prototype of the mouse. 1964, douglas engelbart perfected the idea of this device again and made the first finished product. Therefore, douglas engelbart is also called "the father of mice". At that time, there was no name "mouse". This new device is a small wooden box with two rollers but only one button. Its working principle is that the roller drives the shaft to rotate, the rheostat changes the resistance, and the change of the resistance produces a displacement signal, and the cursor indicating the position on the screen can move after being processed by the computer. Douglas engelbart and his colleagues nicknamed this device "mouse" in the laboratory because it drags a long line like a mouse (like a mouse's tail). At that time, he also thought that the mouse might be widely used in the future, so when he applied for a patent, he named it "X-Y position indicator of display system", but people thought the name "mouse" was more friendly, so he got "mouse". After the mouse was invented, it was first applied to the improved Alto computer system by Xerox in 1973. Unfortunately, at that time, these systems were used for experiments and research work, and they were not popularized to the public, so the mouse has been unknown. From 65438 to 0979, Steve Jobs, the founder of Apple, was invited to watch Alto and the software executed on the system. Jobs was shocked by the computer technology he saw, and he realized that these technologies represented the future development trend of computers. These technologies include using a mouse as a pointing input device and a GUI (Graphical User Interface) for the operating system. Apple immediately added these functions to its own system, prepared to develop a new type of home computer, and hired more than a dozen technicians from Xerox at a high salary. 198 1 year, Xerox introduced Star 80 10 computer with mouse and graphical user interface operating system. This is the first time that the public knows about rats. Unfortunately, due to the high price of this computer, the sales volume is very small. Nevertheless, the mouse has attracted many people's attention and started to be mastered by people. 1983, Apple officially launched the LISA computer, which was the first computer that Apple used the mouse, and further introduced the mouse to the users, making them realize the role of the mouse.