your interactive guide to the digital world discovering computers chapter one basic introduction to...

Your Interactive Guide to the Digital World

Discovering Computers

Chapter One

Basic Introduction to Computers

Objectives Overview

Discovering Computers : Chapter 1 2See Page 3 for Detailed Objectives

Objectives Overview

3See Page 3 for Detailed Objectives

Discovering Computers : Chapter 1

A World of Computers

• Computers are everywhere

4Pages 4 - 5 Figure 1-1 Discovering Computers : Chapter 1

What Is a Computer?

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

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Information Processing Cycle

Discovering Computers : Chapter 1

What Is a Computer?

6Page 6 Figure 1-2

Discovering Computers : Chapter 1

The Components of a Computer

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

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The Components of a Computer

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Discovering Computers : Chapter 1

Advantages and Disadvantages of Using Computers

Advantages of Using Computers

Disadvantages of Using Computers

9Pages 9 - 10Discovering Computers : Chapter 1

Advantages and Disadvantages of Using Computers

• Green computing involves reducing the electricity consumed and environmental waste generated when using a computer

• Strategies include:– Recycling– Regulating manufacturing processes– Extending the life of computers– Immediately donating or properly disposing of replaced computers

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Networks and the Internet

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

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Discovering Computers : Chapter 1

Networks and the Internet

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

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Discovering Computers : Chapter 1

Networks and the Internet

• People use the Internet for a variety of reasons:

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Networks and the Internet

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

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Discovering Computers : Chapter 1

Computer Software

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

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Discovering Computers : Chapter 1

Computer Software

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

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Computer Software

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

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Categories of Computers

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Personal Computers

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

• Two popular architectures are the PC and the Apple– Desktop computer

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Mobile Computers and Mobile Devices

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Mobile Computers and Mobile Devices

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Discovering Computers : Chapter 1

Mobile Computers and Mobile Devices

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Game Consoles

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

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Servers

• A server controls access to the hardware, software, and other resources on a network– Provides a centralized

storage area for programs, data, and information

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Discovering Computers : Chapter 1

Mainframes

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

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Discovering Computers : Chapter 1

Supercomputers

• A supercomputer is the fastest, most powerful computer– Fastest supercomputers are capable of processing

more than one quadrillion instructions in a single second

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Discovering Computers : Chapter 1

Embedded Computers

• An embedded computer is a special-purpose computer that functions as a component in a larger product

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Embedded Computers

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Discovering Computers : Chapter 1

Elements of an Information System

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Elements of an Information System

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Discovering Computers : Chapter 1

Examples of Computer Usage

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Discovering Computers : Chapter 1

Examples of Computer Usage

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Discovering Computers : Chapter 1

Computer Applications in Society

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Discovering Computers : Chapter 1

Computer Applications in Society

34Pages 36 - 38Figures 1-40 – 1-43

Discovering Computers : Chapter 1

Video: Computer History in a Barn

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Discovering Computers : Chapter 1

Summary

36Page 39 Discovering Computers : Chapter 1

Your Interactive Guide to the Digital World

Discovering Computers

Chapter 1 Complete

Basic Introduction to Computers