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Introduction to Computer by Nithiya Ravi Kumar (4161182002) (Main Parts of…
Introduction to Computer
by
Nithiya Ravi Kumar (4161182002)
Role of Computer
In Business and Industry, Publication Field, Education Field, Government Organizations, In Medical Field, Science Field, Entertainment Field and etc.
Types of Computer
Main Parts of Computer
Output Devices
Input Devices
Motherboard
Expansion Cards
CPU & Memory
Random Access Memory (RAM)
Read Only Memory (ROM)
Ports & Connections
Storage Devices
The Role of Memory
Device where information can be stored & retrieved
Volatile Memory
: temporary memory of a computer.
Nonvolatile Memory
: memory is retained after the computer is turned off.
Terminology
Hardware
Includes all input devices, processing devices, storage devices, and output devices.
Programs/ Application
Platform (hardware and the operating system together) to perform tasks.
Data
Data Programs process data from input and displays the output on the screen. It can be text, graphics, audio/ video form depending on the type of program
NetworK
Is a group of computers and associated devices that are linked together to facilitate sharing information.
LAN
(Connects devices within a limited area (home or a small group of offices))
WAN
(Connects devices in geographically separated
areas) (Internet)
Operating system
Controls and manages the hardware connected to the computer & provides a user interface & utilities to configure the system (Backup program and setup wizard) & helps manage computer resources & helps secure data by controlling user access.
Graphics-based
Text-based
Types of Productivity Programs
Word-Processing and Publishing Programs
Microsoft Word
Presentation Programs
Microsoft Office PowerPoint
Spreadsheet Programs
Microsoft Office Excel
Database Programs
Microsoft Office Access
Graphics Programs
Microsoft Paint/Adobe Photoshop
Communication Programs
E-mail messages & Chat programs
Educational & Entertainment Programs
Factors that Affect the Performance of the Computer
RAM
CPU Speed
Hard Disk Factors
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