Introduction to computer

1. Advantages and Disadvantages of Using Computers

1.1. Advantages of Using Computers

1.1.1. Speed

1.1.2. Reliability

1.1.3. Consistency

1.1.4. Storage

1.1.5. Communications

1.2. Disadvantages of Using Computers

1.2.1. Health Risks

1.2.2. Violation of Privacy

1.2.3. Public Safety

1.2.4. Impact on Labor Force

1.2.5. Impact on Environment

2. Networks and the Internet

2.1. A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media

2.2. The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals

2.3. A social networking Web site encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users

3. Computer Software

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

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

4. The Components of a Computer

4.1. Input Device

4.2. Output Device

4.3. System Unit

4.4. Storage Device

4.5. Communications Device

5. Personal Computers

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

5.2. Two popular architectures are the PC and the Apple

6. Mobile Computers and Mobile Devices

6.1. Mobile Computer

6.1.1. Personal computer you can carry from place to place

6.1.2. Examples include notebook computers, laptop computers, and Tablet PCs

6.2. Mobile Device

6.2.1. Computing device small enough to hold in your hand

6.2.2. Examples include smart phones, PDAs, handheld computers, portable media players, and digital cameras