Computer Definition

Computer – an electronic device designed to manipulate data for useful information to be generated.
Computer comes from the word compute.

Data – refers to any collection of facts about people, things, ideas, and events.
Information – is the processed data. It is data organized and presented in a meaningful form to make them useful.
Data processing - is the act of changing and transforming data into information.

GIGO – Garbage In, Garbage Out
Means that the kind of information derived from computer processing is similar to the kind of data entered into the computer.
The computer needs the right output in order to provide the right output. Give the computer a wrong input and it will surely give you a wrong output.

Using The Mouse

POINT – This means that without pressing any mouse buttons, you move the mouse pointer or cursor to a desired screen location.

CLICK – Point the mouse pointer at the object you want to select, and then quickly press and release the left mouse button. If the object is an icon or window, it becomes highlighted.

RIGHT CLICK – When you’re pointing at an object, you can also click the right mouse button on it to bring up a menu of actions you can perform on the object.

DOUBLE CLICK – point to the item and press and release the left mouse button twice in rapid succession.

DRAG – to drag an object to a new location ion-screen, point to the object , press and hold the left mouse button, move the mouse to a new location, and release the mouse button. The object moves with the mouse cursor.


ICONS – are pictures that represent programs, files, folder and other items.

DESKTOP – This is the area that takes up the entire background of the csreen.

MOUSE POINTER – The on-screen pointer (usually an arrow) that you use to select items and choose commands.