On this day, 57 years ago, December 9, 1968 (October 20, 1968, the world's first mouse was introduced. On December 9, 1968, Dr. Engrebert of the Stanford Research Institute in the United States publicly demonstrated the world's first mouse and proposed the concept of a "graphical user interface"(GUI). On December 9, 1968, the world's first mouse was born at Stanford University in California, USA. Its inventor was Dr. Douglas Englebart. Dr. Englebart designed the mouse to make computer operation easier and replace the cumbersome instructions of the keyboard. The mouse he made is a small wooden box. The working principle is that the small ball at the bottom of it drives the pivot and drives the rheostat to change the resistance value to generate a displacement signal. The signal is processed by a computer and the cursor on the screen can move. Since then, mouse and PC have formed an indissoluble bond that is difficult to express in words. Since the advent of computers, the keyboard has been accompanying it and has always played the role of the main input device. Typing with a keyboard is great, but when used to move a cursor, it shows its limitations. So, Engelbert, who works for NASA and works with computers all day long, had a bold idea-can we use a "click control" method instead of typing on the keyboard? Later, people designated December 9, 1968 as the birthday of the mouse. After years of hard work, in 1982, Engelbert's idea finally became a reality: a product called "Display System Cursor Position Vertical and Horizontal Movement Indicator" came out. It has two functions: one is to control the movement of the cursor on the screen, and the other is to replace the enter key. However, its name is too long to call it. One day, in the laboratory where Engelbert worked, a "horizontal and horizontal movement indicator for displaying the cursor position of the system" fell from the computer desk. Due to a connection connected to the host computer, it was suspended in the air, looking like a mouse from the side. This scene inspired Engelbert, so the "horizontal and horizontal movement indicator for displaying the cursor position of the system" got the name "Mouse". When "Mouse", a computer input device, was used in our country, people translated it as "mouse", which appropriately reflected the appearance and function of this device. The mouse was invented by Douglas Engelbart in 1964. At that time, Douglas Engelbart was working at the Stanford Research Institute (SRI), an institution sponsored by Stanford University. Douglas Engelbart had long been thinking about how to make computer operation easier and what means to replace the cumbersome instructions entered by the keyboard. In the early 1960s, while attending a conference, he took out a notebook he carried with him (not a laptop computer) and drew a sketch of a device that used two perpendicular wheels at the bottom to track movements. This was the prototype of the mouse. In 1964, Douglas Engelbart once again refined the concept of the device and made the first finished product. Therefore, Douglas Engelbart is also known as the "father of the mouse". There was no name for a "mouse" at the time. The new device was a small wooden box with two rollers inside but only one button. Its working principle is that the roller drives the shaft to rotate, and the rheostat changes the resistance value. The change of resistance value generates a displacement signal. After processing by the computer, the cursor indicating the position on the screen can move. Because the device drags a long wire like a mouse (like a mouse's tail), Douglas Engelbart and his colleagues jokingly called it "Mouse" in the laboratory. At that time, he also thought that the mouse might be widely used in the future, so he named it "Display System X-Y Position Indicator" when applying for a patent. However, people thought the name "Mouse" was more intimate, so they got the name "Mouse". Comment: The cumbersome instructions of the mouse instead of the keyboard make the operation of the computer easier, the ancestor of the modern mouse.