COMPUTER BLOCK DIAGRAM, HARDWARE DEVICES, SYSTEM SOFTWARE AND APPLICATION SOFTWARE

Chapter 4

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COMPUTER BLOCK DIAGRAM

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HARDWARE DEVICES

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MOUSE

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KEYBOARD

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CENTRAL PROCESSING UNIT (CPU)

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INSIDE CPU

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MOTHER BOARD

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RAM (RANDOM ACCESS MEMORY)

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HARD DISK

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VIDEO CARD

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PROCESSOR

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BLUETOOTH CARD

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SOUND CARD

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NETWORK CARD

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CD/DVD DRIVE

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WEB CAMERA

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SCANNER

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PRINTER

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JOY STICK

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MICROPHONE AND SPEAKERS

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SOFTWARE

Software: Software is a set of programs

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1. APPLICATION SOFTWAREDefinition: Application software, also known

as an application or an "app", is computer software designed to help the user to perform specific tasks.

Example: MS word, MS Excel, MS PPT, etc…

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2. SYSTEM SOFTWARE

Definition: Computer software, or just software is a general term primarily used for digitally stored data such as computer programs and other kinds of information read and written by computers. App comes under computer software though it has a wide scope now.

Example: OS,Utilities, Windows

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Application Software

Computer/ System Software

Interaction: Users always interact with application software while doing different activities.

Generally, users do not interact with system software as it works in the background.

Dependency: Application software cannot run without the presence of the system software.

System software can run independently of the application software.

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SESSION 4 END

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