Computer

1. Computer Software

1.1. System Software

1.1.1. Operating system•

1.1.2. Utility program

1.2. Application Software

2. Categories of Computers

2.1. Personal Computers

2.1.1. Desktop computer

2.2. Mobile Computers and Mobile Devices

2.2.1. Notebook computer

2.2.2. Smart phone

2.2.3. PDA

2.2.4. Tablet PC

2.3. Game Consoles

2.3.1. A game consoleis a mobile computing device designed for single‐player or multiplayer video games

2.4. Servers

2.4.1. A servercontrols access to the hardware, software, and other resources on a network

2.5. Mainframes

2.5.1. A mainframeis a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously

2.6. Supercomputers

2.6.1. A supercomputeris the fastest, most powerful computer

2.7. Embedded Computers

2.7.1. An embedded computeris a special‐purpose computer that functions as a component in a larger product

3. Examples of Computer Usage

3.1. Home User

3.2. Small Office/Home Office User

3.3. Mobile User

4. A World of Computers

4.1. A computeris an electronic device, operating under the control of instructions stored in its own memory

4.1.1. Collects data(input)

4.1.2. Processing

4.1.3. ProcessingProduces information(output)

5. The Components of a Computer

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

6. Networks and the Internet

6.1. A networkis 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

7. Computer Applications in Society

7.1. Education

7.2. Finance

7.3. Government

7.4. Health Care

7.5. Science

7.6. Publishing

7.7. Publishing

7.8. Manufacturing