Introduction to Computers

1. The components of a computer

1.1. Input Device • Allows you to enter data and instructions into a computer

1.2. Output Device • Hardware component that conveys information to one or more people

1.3. System Unit • case that contains the electronic components of the computer that are used to process data

1.4. Storage Device • Holds data, instructions, and information for future use

1.5. Communications Device • Enables a computer to send and receive data, instructions, and information and from one or more computer or mobile devices

1.6. New node

2. Objectives Overview

2.1. Distinguish between system software and application software

2.2. Differentiate among types, sizes, and functions of computers in each category

2.3. Describe the role of each element in an information system

2.4. Explain how home users, small office/home office users, mobile users, power users, and enterprise users

2.5. Discuss how society uses computers in education, finance, government, health care science publishing computers care, science, publishing, travel, and manufacturing

2.6. Define the term, Explain why computer literacy is vital to success in today’s world

2.7. Define the term, computer, and describe the relationship between data and information

2.8. Describe the five components of a computer

2.9. Discuss the advantages and disadvantages that users experience when working with computers

2.10. Define the term, network, and identify benefits of sharing resources on a network

2.11. Discuss the uses of the Internet and World Wide Web

3. What Is a Computer? Discovering

3.1. A computer is an electronic device, operating under the control of instructions stored in its own memory

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 network is 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. A social networking Web site encourages 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

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

6.3. New node

7. Personal Computers can perform all of its input, processing, output, and storage activities by itself • Two popular architectures are the PC and the Apple – Desktop computer

8. Mobile Computers and Mobile Devices

8.1. Notebook computer Tablet PC Smart phone PDA Handheld computer Portable media player Digital camera Click to view Web Link,

9. Game Consoles

10. Servers

11. Mainframes

12. Supercomputers

13. Embedded Computers is a special‐purpose computer that functions as a component in a larger product

14. Elements of an Information System

14.1. Hardware

14.2. Software

14.3. Data

14.4. People

14.5. Procedures

15. Examples of Computer Usage

15.1. Home User

15.2. Small Office/Home Office User

15.3. Mobile User

15.4. Power User

15.5. Enterprise User

16. Computer Applications in Society

16.1. Education

16.2. Finance

16.3. Government

16.4. Health Care

16.5. Science

16.6. Publishing

16.7. Travel

16.8. Manufacturing