1.3 Operating the Computer

The operating system is the software that supervises and controls the hardware. When we turn on the computer it goes through a series of checks to see what is connected to it eg keyboard, monitor, diskdrives etc. Loading the operating system is called booting. To shut down a machine you must exit programs properly. ALT+F4 is a shortcut to shut programs and the machine down.

The Graphical User Interface (GUI) was first used on Apple and Macintosh machines and then was adopted by IBM compatible machines using Windows.  Character User Interface (CUI) displays only characters on the screen. MS DOS is an example of this.

True or False? Write out the true sentences and change the false sentences so that they are true.

 

The first step in starting up a computer is to turn it on

All computers need an operating system

The operating system is the hardware that supervises and controls the software

The operating system is automatically loaded from the hard disk

Finishing up the computer is referred to as booting the system

An icon is a small symbol or picture that represents a series of instructions or programs

GUI is commonly referred to as a WIMP environment

CUI uses icons and windows

MS-DOS is a command-line operating system that uses CUI

To close an application, simply turn the computer off

    

 

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