Computer Basics 2014 Microsoft Corporation. All Rights Reserved Table of Contents



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Knowledge check



Shift is a _____ key.



  • Navigational key

  • Numerical key

  • Alphanumerical key

  • Special key








Function keys perform different actions depending on what program is running.



  • True

  • False










Answers –


#1 – Shift is a special key.
#2 – True. Depending on what program is running, the function keys perform different actions.

Using the mouse





A mouse is a small device that you can use to move, select, and open items on your computer screen.
The mouse is usually kept on the desk next to the keyboard.
Most mouse devices have at least two buttons, left and right.
Most of the actions are performed by clicking the left button. The right button is used for specific functions.
Some advanced types of mouse devices provide additional buttons to speed up common tasks, such as scrolling.
As you move the mouse on your desk, a pointer moves correspondingly on your screen.
The mouse allows you to select an item on the screen.
As you move the pointer over different areas of the screen, the items or the pointer change.
These changes indicate that you can click an item to open it, or to see more of its options.
You can open an item or show more options by moving the pointer to it, and then clicking the left or right mouse button.
In a document, you can use the mouse to select a position to start typing.
You need to position the pointer in the document, click where you want to insert text, and then use your keyboard to begin typing.
To move an item, you need to click it, and then holding the mouse button down, move the item to a different location.
After you move the item to the new location, you release the mouse button.
The right button on the mouse is often used to display a menu. Menu options can include common tasks, such as copy or paste as well as advanced options.
These are called context menus. These menus help you complete tasks quickly.
Most mouse devices also have a wheel that helps you to scroll through documents or pages.
To scroll, place your finger on the wheel and roll it back and forth.
This action moves the document up and down.
Some mouse devices have a "back" button on the side that works in browsers and Windows Explorer.
There are different types of mouse devices available in the market.
Older mouse devices had a rubber or a metal ball on the underside.
The mechanical movement of the mouse device moved the ball.
This movement further moved the pointer on the screen.
The moveable parts of a mechanical mouse were prone to failure. As a result, these devices were high on the maintenance side.
To improve performance most people today use an optical mouse that works in the same way as a regular mouse.
The ball is replaced by a light emitting diode (LED) to track the movements of the mouse.
You can also use a laser mouse that uses laser technology to detect movement by transforming hand movements to digital signals.
When compared to an optical mouse, a laser mouse is more expensive.



















Knowledge check



Which mouse button most commonly opens items?



  • Left

  • Right

  • Middle Wheel








What does the right mouse button most commonly do?



  • Open Items

  • Perform Tasks

  • Display a menu

  • None of the above








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