Components of the system unit COMP5001 - Computer Skills Lecture -2.

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Presentation transcript:

Components of the system unit COMP Computer Skills Lecture -2

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 COMP4001 2

COMPUTER DEFINITION COMP Produces and stores results information Processes data into information Data that is organized, meaningful, and useful data Accepts data Raw facts, figures, and symbols

COMPONENTS OF COMPUTER SYSTEM Software ( Programs /Set of instructions) Hardware (Physical Parts) Computer works with the help of software and Hardware COMP4001 4

SOFTWARE Set of instructions which tell computer what to do. They are also called programs Commands like start,shutdown computer (closing) COMP4001 5

SYSTEM / OPERATING SYSTEM SOFTWARE Operating System (OS) Programs that control or maintain the operations of the computer and its devices 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 COMP4001 6

TYPES OF OPERATING SYSTEM Windows ( 7,XP, Vista) GUI, Famous, User Friendly Unix, Sco-Unix DOS ( very old) COMP Windows Operating System Desktop

APPLICATION SOFTWARE Programs that perform specific tasks for users Types Word processing ( MS-Word ) Presentation (MS-PowerPoint) Graphics (Adobe Photoshop) Spreadsheet (MS-Excel) COMP4001 8

HARDWARE COMP Any peripheral devices ( Physically which we can and touch) and components (inside covered) of the computer

SYSTEM PROPERTIES /CONFIGURATION COMP 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.

WINDOWS 7 COMPUTER – PROPERTIES CONFIGURATION COMP Operating system Name Processor speed & RAM capacity

SHUTTING DOWN SYSTEM COMP Shutdown or logoff your computer after using or when you don’t want to use computer system

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