Introduction to computers

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Introduction to computers by Mind Map: Introduction  to computers

1. Elements of an Information System

1.1. Hardware

1.2. Software

1.3. Data

1.4. People

1.5. Procedures

2. What Is a Computer?

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

3. The Components of a Computer

3.1. hardware

3.1.1. Input Device

3.1.1.1. Allows you to enter data and instructions into a computer

3.1.2. Output Device

3.1.2.1. Hardware component that conveys information to one or more people

3.1.3. System Unit

3.1.3.1. Case that contains the electronic components of the computer that are used to process data

3.1.4. Storage Device

3.1.4.1. Holds data, instructions, and information for future use

3.1.5. Communications Device

3.1.5.1. Enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices

4. Advantages and Disadvantages of Using Computers

4.1. Advantages of Using Computers

4.1.1. Speed

4.1.2. Reliability

4.1.3. Consistency

4.1.4. Storage

4.1.5. Communications

4.2. Disadvantages of Using Computers

4.2.1. Health Risks

4.2.2. Violation of Privacy

4.2.3. Public Safety

4.2.4. Impact on Labor Force

4.2.5. Impact on Environment

5. Networks and the Internet

5.1. A networkis a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media

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

5.3. People use the Internet for a variety of reasons -Communicate -Research and Access Information -Shop -Bank and Invest -Online Trading -Entertainment

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

6. Computer Software

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

6.1.1. System Software

6.1.2. Application Software

6.2. Installingis the process of setting up software to work with the computer, printer, and other hardware

6.3. A programmer develops software or writes the instructions that direct the computer to process data into information

6.3.1. Personal computers

6.3.1.1. A personal computercan perform all of its input, processing, output, and storage activities by itself

6.3.2. Mobile computers and mobile devices

6.3.2.1. Mobile Computer Personal computer you can carry from place to place

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

6.3.2.2. Mobile devices Computing device small enough to hold in your hand

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

6.3.3. Game consoles

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

6.3.4. Servers

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

6.3.5. Mainframes

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

6.3.6. Supercomputers

6.3.6.1. Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second

6.3.7. Embedded computers

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

6.3.7.1.1. Consumer Electronics

6.3.7.1.2. machinesHome Automation Devices

6.3.7.1.3. Automobiles

6.3.7.1.4. Process Controllers and Robotics

6.3.7.1.5. Computer Devices and Office Machines

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. Travel

7.8. Manufacturing

8. Examples of Computer Usage

8.1. Home User •Personal financial management •Web access •Communications •Entertainment

8.2. Small Office/Home Office User •Look up information •Send and receive e‐mail messages •Make telephone calls

8.3. Mobile User •Connect to other computers on a network or the Internet •Transfer information •Play video games •Listen to music •Watch movies

8.4. Power User •Work with multimedia •Use industry‐specific software

8.5. Enterprise User •Communicate among employees •Process high volumes of transactions •Blog

9. Summary

9.1. Basic computer concepts

9.2. Components of a computer

9.3. Networks, the Internet, and computer software

9.4. Many different categories of computers, computer users, and computer applications in society