Apple keyboard with numeric keypad trackpad combined
Mouse actions can be combined for extra functionality. An example of such a mouse is pictured at right.
You can change the settings for a mouse by going to Control Panels / System Preferences and choosing "Mouse." If you buy a special multi-button mouse, you can program each button to perform different actions, such as opening programs, changing system settings, and more. For example, a scroll-click will close a browser tab. Scroll wheel click: Various functions (back, close, zoom, etc.) depending on where you click.Right-click: Open floating ("pop-up") menu.Today, a standard mouse has two main buttons as well as a scroll wheel, which can be both rolled and clicked.
The mouse is essentially a control device, allowing the user to point an arrow, or cursor, at any part of a screen, and then manipulate items on the screen through various "clicks" (pressing buttons). It was part of a larger project which also gave birth to the GUI (Graphic User Interface), and included features we now see as normal-hyperlinks, copy and paste, video conferencing, windows, and more. The mouse was invented in the 1960's by Douglas Engelbart and his team at SRI (Stanford Research Institute). Click on the flag icon to select the layout you will use. In the Menu bar, at the top right, you will see a flag icon.Make sure "Show Input menu in menu bar" is checked.Click on the "+" button at the bottom left to see all available layouts add as many as you like.Click on "Input Sources" at the top right.Your languages should appear in the taskbar at the bottom of the screen, in the "System Tray" near the right side.Caution: do not select "Set as my display language" unless you want that to be the main language for the whole computer Choose the features you want, but make sure to include "Language Pack" and "Basic Typing" if either is not selected.Choose a language from the list, and click "Next".Click on the "Add a preferred language" button with the "+" sign.In the Start Menu, choose "Settings" (the small cog icon near the bottom left).You can change the keyboard layout or the language of input on your computer! Motion sensors allow hand and body movement to act as input.Scanners allow images on flat surfaces (usually photos, text, or codes on paper, or film negatives) to be input.Cameras and microphones (for example, as webcams) allow for image, audio, and video input and control.Mobile devices have touch-sensitive screens for control similar to trackpads.Trackpads are flat surfaces, usually on laptops, which allow for multitouch control of the cursor and button actions.Trackballs are modified mice with a ball on top to control the cursor movement.The mouse is a traditional control device with two or more buttons, which now use lasers.There are various types of keyboards, and different key layouts according to language and country.This chapter covers the various types of input devices, including ways to use them. Images into a camera, sound into a microphone, text into a keyboard, or movement and clicks into a mouse or trackpad-all of this is real-world information input into a computer. "Input" is when data from the outside world which is made digital and entered into a computer.