what’s the computer?? computer is an electronic device that stores, processes, inputs, and outputs...
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What’s the computer??
• computer is an electronic device that stores, processes, inputs, and outputs data to produce a result
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Computer Components • It will be divided to……
Hardware Software
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Introduction
Computer
Hardware (Physical
components)
Software (Programs)
Input Devices
Processing
Output devices
Operating systems
Applications
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First: Hardware
• Hardware is the physical components which you can see with your eyes, touch with your hand
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Hardware: can be divided to….
Input OutputProcessing
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Hardware
• Input : keyboard, mouse• Processing
– C.P.U• Brain of computer• Its speed measured in hertz
– Memory : Computer has 2 memories• RAM: Random Access Memory• ROM: Read Only Memory
– Storage Devices: • Internal storage device: hard disk.• External storage device: Flash Memory-floppy disk-
CD Rom- DVD.
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Second: Software
• Software is the programs it can be divided to………..
Operating systems Applications
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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
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Applications
• Programs that perform a specific tasks such as…….– Antivirus– Windows Media Player– Microsoft office:
• Word• Excel• Power point • Access
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Windows Operating System
• Windows Interface
(2) Icons(2) Icons(1) Background(1) Background
(3)Taskbar(3)Taskbar
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Desktop Icons
• There are 5 main icons:– My documents– My computer – My Network places– Internet Explorer – Recycle Bin
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1- Desktop (Display) Properties
• Is used to change Background, Screen saver, Screen resolution.
• Right Click on desktop →Properties
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1-Right click on Desktop Tabs
Dialog Box
Title bar
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1-BackgroundFrom display properties select desktop tab
Chooses Background Ok
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2- Screen saver
Choose screen saver
Set Time
Then press okok
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settings• From settings you can change screen
resolutions
Drag this curser left and right
Then press okok
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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
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Window BarsTitle Bar
Menu BarStandard Button
BarAddress Bar
Task Pane
Status Bar
Scroll Bar
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Title bar buttons
Minimize
RestoreDown/
Maximize
Close
Minimize (make window
small) asa button onthe task bar
Control the sizing of the
window
To close the window
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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
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Contents pane(Right pane)
Folders pane(Left pane)