computer

1. The Components of a Computer

1.1. Input Devicenode

1.2. Output Device

1.3. System Unit

1.4. Storage Device

1.5. Communications Device

2. Networks and the Internet

2.1. Communicate

2.2. Research and Access Information

2.3. Shop

2.4. Bank and Invest

2.5. Online Trading

2.6. Entertainment

2.7. Web Application

3. Computer Software

3.1. also called a program

4. personal computer

4.1. Desktop computer

4.2. mobile computer

4.2.1. Notebook computer

4.2.2. Tablet PC

4.2.3. NeSmart phonew Smart phone

4.2.4. PDA

4.2.5. Handheld computer

4.2.6. Portable media player

5. Supercomputers

5.1. • A supercomputer is the fastest, most powerful computer – Fastest supercomputers are capable of processing more than

6. computer is

6.1. electronic device

6.2. operating under the control of instructions stored in its own memory

7. Advantages and Disadvantages of Using Computers

7.1. Advantages

7.1.1. Speed

7.1.2. Reliability

7.1.3. Consistency

7.1.4. Storage

7.1.5. Communications

7.2. Disadvantages

7.2.1. Health Risks

7.2.2. Violation of Privacy

7.2.3. Public Safety

7.2.4. Impact on Labor Force

7.2.5. Impact on Environment

8. Servers

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

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