Keyboard and mouse basics

The mouse allows you to move the cursor and click programs. These steps will show you how to use a PC and MAC computer mouse, whether it is plugged into the computer, wireless, or connects via Bluetooth. Most of the new mouse includes side buttons, which can be used for anything by programming them. Although, by default, the mouse side button is used to return back on a web page. You can make more efficient internet browsing by using the thumb button because you are not required to move the mouse cursor to the browser back arrow to go back to a web page. In 1984, the first wireless was invented and named it the Logitech Metaphor.

The picture is an example of a Logitech desktop computer mouse with two primary buttons and a wheel. The scroll wheel can also be used as a third button on the mouse. For example instead of pressing the left button to click on a link in a webpage you can press the scroll wheel just once and the link will appear in a new tab on the web browser. You can also close a tab by clicking on it with the scroll wheel. To drag an object and place it elsewhere select the item you wish to move to an alternate area by pressing the left button on your mouse once. However if you wish to select multiple files or text, press the left button on your mouse and drag the pointer over the files or text you wish to select.

It was used in the early days of the IBM-compatible personal computers. You single click with the left mouse button to select things. As you move it across your desk, the ball rolls under its own weight and pushes against two plastic rollers linked to thin wheels . One of the wheels detects movements in an up-and-down direction (like the y-axis on graph/chart paper); the other detects side-to-side movements (like the x-axis on graph paper).

Operating systems sometimes apply acceleration, referred to as “ballistics”, to the motion reported by the mouse. For example, versions of Windows prior to Windows XP doubled reported values above a configurable threshold, and then optionally doubled them again above a second configurable threshold. These doublings applied separately in the X and Y directions, resulting in very nonlinear response. Starting with Windows XP, Microsoft introduced an SDK for developing applications that allow multiple input devices to be used at the same time with independent cursors and independent input points.


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When the ball was rolled, the pickup discs spun and contacts on their outer rim made periodic contact with wires, producing pulses of output with each movement of the ball. By counting the pulses, the physical movement of the ball could be determined. A digital computer calculated the tracks and sent the resulting data to other ships in a task force using pulse-code modulation radio signals. This trackball used a standard Canadian five-pin bowling ball. It was not patented, since it was a secret military project.

The cursor may look like a hand when you point at a link to a web page. It’s the tip of the finger that is the sensitive, or important, part when clicking something on the screen. The mouse pointer, or cursor, represents the mouse on the computer screen. When you move the mouse across the top of a table, the cursor moves on the computer screen in the same direction. There’s a small picture, called an icon, on the computer screen that represents that program.