1. Networks and the Internet
1.1. network
1.1.1. A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media
1.2. Internet
1.2.1. The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals
1.3. social networking Web site
1.3.1. A social networking Web site encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users
2. Computer Software (program)
2.1. System Software
2.1.1. Operating system
2.1.2. Utility program
2.2. Application Software
2.3. Installing
2.3.1. Installing is the process of setting up software to work with the computer, printer, and other hardware
3. Computer Applications in Society
3.1. Education
3.2. Finance
3.3. Government
3.4. Health Care
3.5. Science
3.6. Publishing
3.7. Travel
3.8. Manufacturing
4. Components of Computer
4.1. hardware
4.1.1. Input Device
4.1.2. Output Device
4.1.3. System Unit
4.1.4. Storage Device
4.1.5. Communications Device
5. Advantages and Disadvantages of Using Computers
5.1. Advantages
5.1.1. Speed
5.1.2. Reliability
5.1.3. Consistency
5.1.4. Storage
5.1.5. Communications
5.2. Disadvantages
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. Categories of Computers
6.1. Personal computers
6.2. Mobile computers
6.2.1. notebook computers
6.2.2. laptop computers
6.2.3. Tablet PCs
6.3. mobile devices
6.3.1. smart phones
6.3.2. PDAs
6.3.3. handheld computers
6.3.4. portable media players
6.3.5. digital cameras
6.4. Game consoles
6.4.1. A game console is a mobile computing device designed for single‐player or multiplayer video games
6.5. Servers
6.5.1. A server controls access to the hardware, software, and other resources on a network
6.6. Mainframes
6.6.1. A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously
6.7. Embedded computers
6.8. Supercomputers
6.8.1. A supercomputer is the fastest, mostpowerful computer