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

Objectives Overview

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

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

Describe the five components of a computer

Discuss the advantages and disadvantages 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, and functions of computers in each category

Describe the role of each element in an information system

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

Discuss how society uses computers in education, finance, government, health care, science, publishing, travel, and manufacturing

A World of Computers

Computers are everywhere

What Is a Computer?

A computeris an electronic device, operating under the control of instructions stored in its own memory

The Components of a Computer

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

Input Device, Web cam

Output Device, Printer

System Units, Process memmory

storage Device, Card reader

Communications Device, Modem

Networks and the Internet

A networkis a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media

The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals

People use the Internet for a variety of reasons:


Research and Access Information


Bank and Invest

Online Trading


Download Music

Share Videos

Web Application

Advantages and Disadvantages of Using Computers

Advantages of Using Computers






Disadvantages of Using Computers

Health Risks

Violation of Privacy

Public Safety

Impact on Labor Force

Impact on Environment

Computer Software

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

System Software, Operating system, Utility program

Application Software

Installingis 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 computers

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

Two popular architectures are the PC and the Apple, Desktop computer

Mobile computers and mobile devices

Mobile Computer, Personal computer you can carry from place to place, Notebook computer

Mobile Device, Computing device small enough to hold in your hand, PDA

Game consoles

A game consoleis a mobile computing device designed for single‐player or multiplayer video games


A servercontrols access to the hardware, software, and other resources on a network, Provides a centralized storage area for programs, data, and information


A mainframeis a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously


A supercomputeris the fastest, most powerful computer, Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second

Embedded computers

An embedded computeris a special‐purpose computer that functions as a component in a larger product, Consumer Electronics, Mobile and digital telephones, Home Automation Devices, Thermostats, Automobiles, Antilock brakes, Process Controllers and Robotics, Remote monitoring systems, Computer Devices and Office Machines, Keyboards

Elements of an Information System






Examples of Computer Usage

Home User

Personal financial management


Small Office/Home Office User

Look up information

Send and receive e‐mail messages

Mobile User

Connect to other computers on a network or the Internet

Transfer information

Power User

Work with multimedia

Use industry‐specific software

Enterprise User

Communicate among employees

Process high volumes of transactions

Computer Applications in Society




Health Care






Basic computer concepts

Components of a computer

Networks, the Internet, and computer software

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