Computer

1. Components

1.1. Input Device

1.2. Output Device

1.3. System Unit

1.4. Storage Device

1.5. Communications Device

2. Using of Computers

2.1. Advantages

2.1.1. Speed

2.1.2. Reliability

2.1.3. Consistency

2.1.4. Storage

2.1.5. Communications

2.1.6. New node

2.2. Disadvantages

2.2.1. Health Risks

2.2.2. Violation of Privacy

2.2.3. Public Safety

2.2.4. Impact on Labor Force

2.2.5. Impact on Environment

2.3. Green computing

3. Networks and the Internet

3.1. Networks

3.2. Internet

3.2.1. Communicate

3.2.2. Research and Access Information

3.2.3. Shop

3.2.4. Bank and Invest

3.2.5. Online Trading

3.2.6. Entertainment

3.2.7. Download Music

3.2.8. Share Videos

3.2.9. Web Application

3.3. Social networking

4. Software

4.1. New node

4.1.1. Operating system

4.1.2. Utility program

4.2. Application Software

4.3. Installing

5. Categories

5.1. Personal computers

5.2. Mobile computers and mobile devices

5.2.1. Notebook computer

5.2.2. Tablet PC

5.2.3. Smart phone

5.2.4. PDA

5.2.5. Handheld computer

5.2.6. Portable media player

5.2.7. Digital camera

5.3. Game consoles

5.4. Servers

5.5. Mainframes

5.6. Supercomputers

5.7. Embedded computers

6. Applications in Society

6.1. Education

6.2. Finance

6.3. Government

6.4. Health Care

6.5. Science

6.6. Publishing

6.7. Travel

6.8. Manufacturing