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Introduction to Computers by Mind Map: Introduction to Computers
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Introduction to Computers

What is a computer ?

A computer is an electronic device, operating under the control of instructions stroed in its own memory

A World of Computers

Computers are everywhere

Objectives Overview

Explain why computer literacy is vital to success in today's world

Define the term, computer, describe the relationship between data and information

Describe the five components of a computer

Discuss the advantages that users experience when working with computers

Define the term network, and identify benefits of sharing resources on a network

Discuss the uses of the Internet and World Wide Web

Distinguish between system software and application software

Differentiate among types, sizes, andfunctions of computers in each category

Describethe role of each elementin an information system

Explain how home users, small office/home office usres, mobile users, power users, and enterprise users each interact with computers

Discuss how society users compyters in education, finance, government, health care, science, publishing, travel, and manufacturing

The Components of a Computer

A computer contains many electric, electronic, and mechanical components know as hardware

Input Device

Output Device

System Unit

Storage Device

Communications Dvice

Advantages and Disadvantages of Using Computers

Advantages of Using Computers

Speed

Reliability

Consistency

Storaeg

Communications

Disadvantages of Using Computers

Health Risks

Violation of Privacy

Public Safety

Impact on Libor Force

Impact on Environment

Networks and the Internet

A network is a collection of computers and device connected together, often wirelessly, via communications device and transmission media

The Internet is a worldwide collection pf networks that connect millions of businesses, government agencies, educational institution, and individuals

A social networking Web site encourages members to share their interests, ideas, stories, photo, music, and videos with other registered usres

People use the Internet for a variety of reasona :

Communicate

Research and Access Information

Shop

Bank and Invest

Online Trading

Entertainment

Download Music

Share Videos

Web Application

Computer Software

Software, alsocolled a program, tells the computer what tasks to perform and how to perform them

System Software, Operating System, Utility program

Application Software

Installing is the process of setting up software to work with the computer, printer, and other hardware

A programmer develops software or writes the instructions that direct the computer to process data into information

Categories of Computers

Personal Computer

A personal computer can perform all of its input, processing, output, and storage activities by itself

Two popular architctures are the PC and the Apple, Desktop Computer

Mobile Computers and Mobile Devices

Mobile Computers, Personal Computer you can carry from place to place

Mobile Devices, Computing device small enough to hold in your hand

Game Consoles

A game console is a mobile computing device designed for single-player or multiplayer video games

Servers

A server controls access to the hardware, software, and other resources on a network

Mainframes

A mainframe is a large, expensive, powreful computer that can handle hundreds or thousands of connected users simultaneously

Supercomputers

A supercomputer is the fastest, most powerful computer

Embedded Computers

An embedded computer is a special-purpose computer that functions as a component in a large product, Consumer Electronics, Home automation devices, Automobiles, Process COntrollers and Robotics, Computer devices and Office Machines

Elements of an Information System

Hardware

Software

Data

People

Procedures

Examples of Computer Usage

Home User

Small Office/Home Office Usres

Mobile User

Power User

Enterprise User

Computer Application in Society

Education

Finance

Government

Health Care

Science

Publishing

Travel

Manufacturing

Summary

Basic computer concepts

Components of a computer

Networks, the Internet, and computer software

Many different categories of computer, computer users, and computer applications in society