introduction to computer

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introduction to computer by Mind Map: introduction to computer

1. A World of Computers

1.1. Computers are everywhere

2. Objectives Overview

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

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

2.3. Describe the five components of a computer

2.4. Discuss the advantages and disadvantages that users experience when working with computers

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

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

2.7. Distinguish between system software and application software

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

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

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

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

3. What Is a Computer?

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

3.1.1. Information Processing Cycle

3.1.1.1. Collects data (input)

3.1.1.2. Processing

3.1.1.3. Produces information (output)

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

4.1.1.1. Allows you to enter data and instructions Input Device into a computer

4.1.2. Output Device

4.1.2.1. Hardware component that conveys information to one or more people

4.1.3. System Unit

4.1.3.1. Case that contains the electronic components of the computer that are used to process data

4.1.4. Storage Device

4.1.4.1. Holds data, instructions, and information for future use

4.1.5. Communications Device

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

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

5.3. Green computing

5.3.1. involves reducing the electricity consumed and environmental waste generated when using a computer

5.4. Strategies include:

5.4.1. – Recycling

5.4.2. – Regulating manufacturing processes

5.4.3. – Extending the life of computers

5.4.4. – Immediately donating or properly disposing of replaced computers

6. Networks and the Internet

6.1. A network is 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. Communicate

6.3.2. Research and Access Information

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

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

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

7.1.1.1. Operating system

7.1.1.2. Utility program

7.1.2. Application Software

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

8.2. Mobile computers and mobile devices

8.3. Game consoles

8.4. Servers

8.5. Mainframes

8.6. Supercomputers

8.7. Embedded computers

9. Personal Computers

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

9.2. Two popular architectures are the PC and the Apple – Desktop computer

10. Mobile Computers and Mobile Devices

10.1. Mobile Computer

10.1.1. Examples include notebook computers, laptop computers, and Tablet PCs

10.2. Mobile Device

10.2.1. Examples include smart phones, PDAs, handheld computers, portable media players, and digital cameras

11. Mobile Computers and Mobile Devices

11.1. Notebook computer

11.2. Tablet PC

11.3. Smart phone

11.4. PDA

11.5. Handheld computer

11.6. Portable media player

11.7. Digital camera

12. Game Consoles

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

13. Servers

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

14. Mainframes

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

15. Supercomputers

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

16. Embedded Computers

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

16.1.1. Consumer Electronics •Mobile and digital telephones • Digital televisions • Cameras • Video recorders • DVD players and recorders • Answering machines

16.1.2. Home Automation Devices • Thermostats • Sprinkling systems • Security monitoring systems • Appliances • Lights

16.1.3. Automobiles • Antilock brakes • Engine control modules • Airbag controller • Cruise control

16.1.4. Process Controllers and Robotics • Remote monitoring systems • Power monitors •Machine controllers •Medical devices

16.1.5. Computer Devices and Office Machines • Keyboards • Printers • Faxes • Copiers

17. Elements of an Information System

17.1. Hardware

17.2. Software

17.3. Data

17.4. People

17.5. Procedures

18. Examples of Computer Usage

18.1. Home User • Personal financial management •Web access • Communications • Entertainment

18.2. Small Office/Home Office User • Look up information • Send and receive e-mail messages •Make telephone calls

18.3. Mobile User • Connect to other computers on a network or the Internet • Transfer information • Play video games • Listen to music •Watch movies

18.4. Power User • Work with multimedia • Use industry-specific software

18.5. Enterprise User • Communicate among employees • Process high volumes of transactions • Blog

19. Computer Applications in Society

19.1. Education

19.2. Finance

19.3. Government

19.4. Health Care

19.5. Science

19.6. Publishing

19.7. Travel

19.8. Manufacturing

20. Summary

20.1. Basic computer concepts

20.2. Components of a computer

20.3. Networks, the Internet, and computer software

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

21. New node