Chapter 1 : Introduction to Computers

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Chapter 1 : Introduction to Computers by Mind Map: Chapter 1 : Introduction to Computers

1. Objectives Overview

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

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

1.3. Describe the five components of a computer

1.4. Discuss the advantages and disadvantages that users experience when working with computersDefine

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

1.6. Discuss the uses of the Internet and World Wide Web

1.7. Distinguish between system software and application software

1.8. Differentiate among types, sizes, and functions of computers in each category

1.9. Describe the role of each element in an information system

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

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

2. A World of Computers

2.1. Computers are everywhere

3. What Is a Computer?

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

4. The Components of a Computer

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

4.1.1. Input Device Allows you to enter data and instructions into a compuer

4.1.2. Output Device Hardware component that conveys information to one or more people

4.1.3. System Unit Case that contains the electronic components of the computer that are used to process data

4.1.4. Storage Device Holds data, instructions, and information for future use

4.1.5. Communications Device Enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices

5. Networks and the Internet

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

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

5.3. People use the Internet for a variety of reasons

5.3.1. Communicate

5.3.2. Research and Access Information

5.3.3. Shop

5.3.4. Bank and Invest

5.3.5. Online Trading

5.3.6. Entertainment

5.3.7. Download Music

5.3.8. Share Videos

5.3.9. Web Application

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

6. Advantages and Disadvantages of Using Computers

6.1. Advantages of Using Computers

6.1.1. Speed

6.1.2. Reliability

6.1.3. Consistency

6.1.4. Storage

6.1.5. Communications

6.2. Disadvantages of Using Computers

6.2.1. Health Risks

6.2.2. Violation of Privacy

6.2.3. Public Safety

6.2.4. Impact on Labor Force

6.2.5. Impact on Environment

6.3. Green computing : involves reducing the electricity consumed and environmental waste generated when using a computer

6.4. Strategies include

6.4.1. Recycling

6.4.2. Regulating manufacturing processes

6.4.3. Extending the life of computers

6.4.4. Immediately donating or properly disposing of replaced computers

7. Computer Software

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

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

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

8. Categories of Computers

8.1. Personal computers

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

8.1.2. Two popular architectures are the PC and the Apple Desktop computer

8.2. Mobile computers and mobile devices

8.2.1. Mobile Computer Personal computer you can carry from place to place Examples include notebook computers, laptop computers, and Tablet PCs

8.2.2. Mobile Device Computing device small enough to hold in your hand Examples include smart phones, PDAs, handheld computers, portable media players, and digital cameras

8.3. Game consoles

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

8.4. Servers

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

8.5. Mainframes

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

8.6. Supercomputers

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

8.7. Embedded computers

8.7.1. An embedded computer is a special‐purpose computer that functions as a component in a larger product

9. Elements of an Information System

9.1. Hardware

9.2. Software

9.3. Data

9.4. People

9.5. Procedures

10. Computer Applications in Society

10.1. Education

10.2. Finance

10.3. Government

10.4. Health Care

10.5. Science

10.6. Publishing

10.7. Travel

10.8. Manufacturing

11. Summary

11.1. Basic computer concepts

11.2. Components of a computer

11.3. Networks, the Internet, and computer software

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

12. New node