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Computer Mouse: what and why?

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In computer science, the term "mouse" refers to a control device held in the palm of the hand, connected to a  computer and whose movement on a surface causes the movement of a cursor on the screen. It thus makes it possible to point to elements displayed on the screen and to select them by clicking. In the 1960s, Douglas Carl Engelbart, an American engineer, invented the mouse. It then looks like a wooden box with two wheels and a button and connected to the computer by a wire.

It was then not until the end of the 1970s that Jean-Daniel Nicoud, a Swiss computer scientist, developed the first ball mouse. Set in motion, this ball drives the rotation of rollers and a perforated wheel connected to an optical fork capable of translating the movement of the mouse and its speed.

More and more sophisticated mice
Then, in the late 1990s, more precise and reliable optical mice appeared that relied solely on light to capture movement. They have also, for some of them, lost the thread that linked them to the computer for more freedom. Small downside: they worked poorly on transparent or shiny surfaces. Today, laser mice make it possible to overcome all these difficulties.

Now there are many sizes, shapes - very classic shapes or more ergonomic shapes - or mouse colors. Some are equipped with a central wheel that allows you to scroll through the pages when browsing the Internet, for example. Some come in the form of a single button. Others have more and more. They then make it easier to navigate the Internet when the simple press of a button returns, for example, to the previous page.

Finally, note that laptops are equipped with  trakpads that allow you to move the cursor without having to use a mouse. And more and more screens are now tactile. What also do without using a mouse.

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