What’s the computer?? computer is an electronic device that stores, processes, inputs, and outputs data to produce a result

Computer Components It will be divided to…… HardwareSoftware

Introduction Computer Hardware (Physical components ) Software (Programs) Input Devices Processing Output devices Operating systems Applications

First: Hardware Hardware is the physical components which you can see with your eyes, touch with your hand

Hardware: can be divided to…. InputOutputProcessing

Hardware Input : keyboard, mouse Processing –C–C.P.U Brain of computer Its speed measured in hertz –M–Memory : Computer has 2 memories RAM: Random Access Memory ROM: Read Only Memory –S–Storage Devices: Internal storage device: hard disk. External storage device: Flash Memory-floppy disk- CD Rom- DVD.

Second: Software Software is the programs it can be divided to……….. Operating systemsApplications

Operating Systems First Program to load. Controls Hardware And software. Enable User to operate PC( Personal Computer) –Examples: DOS: Disk Operating System Windows: It’s a GUI (Graphical User Interface) System –GUI: is a system that uses graphics( icons, windows, mouse, pointer, colors) to operate pc. Linux Unix Mac: Macintosh

Applications Programs that perform a specific tasks such as……. –Antivirus –Windows Media Player –Microsoft office: Word Excel Power point Access

Windows Operating System Windows Interface (2) Icons (1) Background (3)Taskbar

Desktop Icons There are 5 main icons: –My documents –My computer –My Network places –Internet Explorer –Recycle Bin

1- Desktop (Display) Properties Is used to change Background, Screen saver, Screen resolution. Right Click on desktop → Properties

1-Right click on Desktop Tabs Dialog Box Title bar

1-Background From display properties select desktop tab Chooses Background Ok

2- Screen saver Choose screen saver Set Time ok Then press ok

settings From settings you can change screen resolutions Drag this curser left and right ok Then press ok

System Properties Right click on my computer → properties From this Dialog box you can find out: 4-Size of RAM 3-Speed Of Processor 2-Type of the processor (C.P.U) 1-Type of operating system

Window Bars Title Bar Menu Bar Standard Button Bar Address Bar Task Pane Status Bar Scroll Bar

Title bar buttons MinimizeRestore Down/ Maximize Close Minimize (make window small) as a button on the task bar Control the sizing of the window To close the window

Explorer Window You can get this window by: 1.Right click on the icon → explorer 2.Select the [Folders] icon on the toolbar It contains two sides: –left hand pane (Folders pane) contains a ‘folders tree’, Showing how the drives and folders linked together. –right hand pane (Contents pane) shows the folders and files contained in the drive or folder currently selected in the Folders pane

Contents pane (Right pane) Folders pane (Left pane)