lecture 1 comp4001win7
DESCRIPTION
Computer SkillsTRANSCRIPT
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Introduction to Computer System
Chapter – 1
COMP4001 -Computer Skills
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Computer Definition
It is a electronic device that accepts input , processes data, stores data and produces output.
Example Calculator -
It accepts only numbers , does simple math process( +,-,*,/ ) , produces output /result on screen
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Computer Definition
Produces and stores results
Processes data into informationinformation
Data that is organized, meaningful, and useful
Accepts datadataRaw facts, figures, and symbols
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Components of Computer System
Software ( Programs /Set of instructions) Hardware (Physical Parts)
Computer works with the help of software and Hardware
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Software
Set of instructions which tell computer what to do .
They are also called programs Commands like start ,shutdown computer
(closing)
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System / Operating System Software
Programs that control or maintain the operations of the computer and its devices Operating System (OS)Operating System (OS)
Set of programs that coordinates all activities among computer hardware devices and allows users to run application software
Every computer system has( must ) at least one operating system
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Types Of operating system
Windows ( 7,XP, Vista)GUI, Famous, User Friendly
Unix, Sco-Unix DOS ( very old)
Windows Operating System Desktop
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Application Software
Programs that perform specific tasks for users
Types Word processing ( MS-Word ) Presentation (MS-PowerPoint) Graphics (Adobe Photoshop) Spreadsheet (MS-Excel)
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Hardware
Any peripheral devices ( Physically which we can and touch)and components (inside covered) of the computer
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Practical Exercise (Desktop)
Use Desktop Programs option and check the following.
What are the Application software in your college computer?
What is the Operating System on your system?
What are the software of Microsoft company? What are the other interesting programs of
operating system?
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Practical Exercise
List the hardware parts which you are able to see and use.
How Keyboard is different from screen? Can you print from your system / is printer is
connected to your system.
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Windows 7 Desktop (Working Area )
ICONS
Start button
Desktop
Taskbar Notification Area
COMP400112Taskbar pinned programs
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Windows Desktop (classical view -Working Area )
Start Quick Launch Taskbar Taskbar NotificationButton Toolbar Area
Icons Desktop Mouse Cursor
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Start Icon /Button
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Current user name
Frequently used programs
Search files
Recently opened items
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Window Common Properties
Close
Maximize/Restore Minimize
Status Bar
Control IconTitle Bar
Menu Bar
MY COMPUTER WINDOW
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System Properties /Configuration
To see your computers operating system
1. Click on ‘My computer’ on desktop / from ‘Start’ Menu
2. Keeping your mouse cursor in ‘My computer ‘ Window , Right click on mouse and select ‘Properties’ option
3. The ‘System Properties’ window is displayed with system details.
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Windows 7 computer – Propertiesconfiguration
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Operating system Name
Processor speed & RAM capacity
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Shutting down system
Shutdown or logoff your computer after using or when you don’t want to use computer system
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