Introduction to Computers

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Introduction to Computers by Mind Map: 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 computers.

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. Input Device

4.1.1. Web cam

4.2. Output Device

4.2.1. Printer

4.3. System Units

4.3.1. Process memmory

4.4. storage Device

4.4.1. Card reader

4.5. Communications Device

4.5.1. Modem

5. Advantages and Disadvantages of Using Computers

5.1. Advantages of Using Computers

5.1.1. Speed

5.1.2. Reliability

5.1.3. Consistency

5.1.4. Storage

5.1.5. Communications

5.2. Disadvantages of Using Computers

5.2.1. Health Risks

5.2.2. Violation of Privacy

5.2.3. Public Safety

5.2.4. Impact on Labor Force

5.2.5. Impact on Environment

6. Networks and the Internet

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

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

6.3. People use the Internet for a variety of reasons:

6.3.1. Research and Access Information

6.3.2. Communicate

6.3.3. Shop

6.3.4. Bank and Invest

6.3.5. Online Trading

6.3.6. Entertainment

6.3.7. Download Music

6.3.8. Share Videos

6.3.9. Web Application

7. Computer Software

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

7.1.1. System Software Operating system Utility program

7.1.2. Application Software

7.2. Installingis 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 computercan 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 Notebook computer

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

8.3. Game consoles

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

8.4. Servers

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

8.6. Supercomputers

8.6.1. A supercomputeris 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 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

9. Elements of an Information System

9.1. Software

9.2. Hardware

9.3. Data

9.4. People

9.5. Procedures

10. Examples of Computer Usage

10.1. Home User

10.1.1. Personal financial management

10.1.2. Communications

10.2. Small Office/Home Office User

10.2.1. Look up information

10.2.2. Send and receive e‐mail messages

10.3. Mobile User

10.3.1. Connect to other computers on a network or the Internet

10.3.2. Transfer information

10.4. Power User

10.4.1. Work with multimedia

10.4.2. Use industry‐specific software

10.5. Enterprise User

10.5.1. Communicate among employees

10.5.2. Process high volumes of transactions

11. Computer Applications in Society

11.1. Education

11.2. Finance

11.3. Government

11.4. Health Care

11.5. Science

11.6. Publishing

11.7. Travel

11.8. Manufacturing

12. Summary

12.1. Basic computer concepts

12.2. Components of a computer

12.3. Networks, the Internet, and computer software

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