Introduction to Computers

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Introduction to Computers by Mind Map: Introduction to Computers

1. A World of Computers

1.1. Computers are everywhere

2. What Is a Computer?

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

2.1.1. Information Processing Cycle

2.1.1.1. Collects >> Processing >> Produces data information (input) (output)

3. The Components of a Computer

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

3.1.1. Input Device

3.1.1.1. Allows you to enter data and instructions into a computer

3.1.2. Output Device

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

3.1.3. System Unit

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

3.1.4. Storage Device

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

3.1.5. Communications Device

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

4. Advantages and Disadvantages of Using Computers

4.1. Advantage of Using Coputers

4.1.1. Speed

4.1.2. Reliability

4.1.3. Consistency

4.1.4. Storage

4.1.5. Communications

4.2. Disadvantages of Using Computers

4.2.1. Health Risks

4.2.2. Violation of Privacy

4.2.3. Public Safety

4.2.4. Impact on Labor Force

4.2.5. Impact on Environment

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

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

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 with other registered users

6. Computer Software

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

6.1.1. System Software

6.1.1.1. Operating system

6.1.1.2. Utility program

6.1.2. Application Software

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

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

7. Categories of Computers

7.1. Personal computers >> Mobile computers and mobile devices >> Game consoles >> Servers >> Mainframes >> Supercomputers >> Embedded computers

8. Personal Computers

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

8.2. Two popular architectures are the PC and the Apple

8.2.1. Desktop computer

9. Mobile Computers and Mobile Devices

9.1. Mobile Computer

9.1.1. Personal computer you can carry from place to Computer

9.1.1.1. Notebook computer

9.1.1.2. laptop computers

9.1.1.3. Tablet PCs

9.2. Mobile Device

9.2.1. Computing device small enough to hold in your hand

9.2.1.1. smart phones

9.2.1.2. PDAs

9.2.1.3. handheld computers

9.2.1.4. portable media players

9.2.1.5. digital cameras

10. Game Consoles

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

10.2. A "server" controls access to the hardware, software, and other resources on a network

11. Servers

11.1. A "server" controls access to the hardware, software, and other resources on a network

11.1.1. Provides a centralized storage area for programs, data, and information

12. Mainframes

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

13. Supercomputers

13.1. A supercomputer is the fastest, most powerful computer

13.1.1. Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second

14. Embedded Computers

14.1. Consumer Electronics

14.1.1. Mobile and digital telephones

14.1.2. Digital televisions

14.1.3. Cameras

14.1.4. Video recorders

14.1.5. DVD players and recorders

14.1.6. Answering machines

14.2. Home Automation Devices

14.2.1. Thermostats

14.2.2. Sprinkling systems

14.2.3. Security monitoring systems

14.2.4. Appliances

14.2.5. Lights

14.3. Automobiles

14.3.1. Antilock brakes

14.3.2. Engine control modules

14.3.3. Airbag controller

14.3.4. Cruise control

14.4. Process Controllers and Robotics

14.4.1. Remote systemsmonitoring

14.4.2. Power monitors

14.4.3. Machine controllers

14.4.4. Medical devices

14.5. Computer Devices and Office Machines

14.5.1. Keyboards

14.5.2. Printers

14.5.3. Faxes

14.5.4. Copiers

15. Elements of an Information System

15.1. Hardware

15.2. Software

15.3. Data

15.4. People

15.5. Procedures

16. Computer Applications in Society

16.1. Education

16.2. Finance

16.3. Government

16.4. Health Care

16.5. Science

16.6. Publishing

16.7. Travel

16.8. Manufacturing

17. Summary

17.1. Basic computer concepts

17.2. Components of a computer