introduction to computer

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introduction to computer by Mind Map: introduction to computer

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. Computer Software

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

2.1.1. System Software

2.1.1.1. Operating system

2.1.1.2. Utility program

2.1.2. Application Software

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

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

3. Categories of Computers

3.1. Personal computers

3.2. Mobile computers and mobile devices

3.3. Game consoles

3.4. Servers

3.5. Mainframes

3.6. Supercomputers

3.7. Embedded computers

4. Personal Computers

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

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

5. Mobile Computers and Mobile Devices

5.1. Mobile Computer

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

5.2. Mobile Device

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

6. Mobile Computers and Mobile Devices

6.1. Notebook computer

6.2. Tablet PC

6.3. Smart phone

6.4. PDA

6.5. Handheld computer

6.6. Portable media player

6.7. Digital camera

7. Mainframes

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

8. Elements of an Information System

8.1. Hardware

8.2. Software

8.3. Data

8.4. People

8.5. Procedures

9. Computer Applications in Society

9.1. Education

9.2. Finance

9.3. Government

9.4. Health Care

9.5. Science

9.6. Publishing

9.7. Travel

9.8. Manufacturing

10. Summary

10.1. Basic computer concepts

10.2. Components of a computer

10.3. Networks, the Internet, and computer software

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

11. New node

12. A World of Computers

12.1. Computers are everywhere

13. What Is a Computer?

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

13.1.1. Information Processing Cycle

13.1.1.1. Collects data (input)

13.1.1.2. Processing

13.1.1.3. Produces information (output)

14. The Components of a Computer

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

14.1.1. Input Device

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

14.1.2. Output Device

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

14.1.3. System Unit

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

14.1.4. Storage Device

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

14.1.5. Communications Device

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

15. Advantages and Disadvantages of Using Computers

15.1. Advantages of Using Computers

15.1.1. Speed

15.1.2. Reliability

15.1.3. Consistency

15.1.4. Storage

15.1.5. Communications

15.2. Disadvantages of Using Computers

15.2.1. Health Risks

15.2.2. Violation of Privacy

15.2.3. Public Safety

15.2.4. Impact on Labor Force

15.2.5. Impact on Environment

15.3. Green computing

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

15.4. Strategies include:

15.4.1. – Recycling

15.4.2. – Regulating manufacturing processes

15.4.3. – Extending the life of computers

15.4.4. – Immediately donating or properly disposing of replaced computers

16. Networks and the Internet

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

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

16.3. People use the Internet for a variety of reasons

16.3.1. Communicate

16.3.2. Research and Access Information

16.3.3. Shop

16.3.4. Bank and Invest

16.3.5. Online Trading

16.3.6. Entertainment

16.3.7. Download Music

16.3.8. Share Videos

16.3.9. Web Application

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

17. Game Consoles

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

18. Servers

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

19. Supercomputers

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

20. Embedded Computers

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

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

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

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

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

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

21. Examples of Computer Usage

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

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

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

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

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