What does thinkpad's little red riding hood do?

This little red riding hood called "TrackPoint" by ThinkPad is generally called pointing stick, and black fans generally call it little red dot, which is a classic little thing. Its working principle is that when an external force acts on the pointing stick, the ceramic piece at the lower part of the pointing stick will be slightly deformed immediately, and the resistance of the ceramic piece will also change accordingly, so different electrical signals will be generated. By analyzing these different electrical signals, the circuit can judge the different moving directions and speeds of the mouse pointer. Put your finger on the little red riding hood, feel the direction of the mouse and try to move it. The mouse will move as you want.

Some people say that a mouse is enough. Why do you need this little red dot? To use the mouse, there must be room for free operation. In addition, when switching from keyboard operation to mouse operation, be sure to raise your wrist and move your arm. Little red dot, on the other hand, doesn't need the space of the mouse, and his hands can continue to operate without leaving the keyboard.

Little red dot also has two very convenient functions. One is the "central button", which can be used to select the scrolling function and enlarge the display function of TrackPoint; One is the "press select" function, which can be clicked without pressing a key. As long as you skillfully use these two functions, you can achieve the same convenient operability as a mouse.

If you are used to the pointing stick, you will like it, but once you need another notebook without the pointing stick, you will feel very depressed.

If in doubt, please continue to ask questions.

If the above is helpful to you, please adopt it as soon as possible.