CHAPTER 1: INTRODUCTION TO IT

1. DISADVANTAGE

1.1. 1...Health risk

1.2. 2...Violation of privacy

1.3. 3...Impact on labour force

2. DEFINITON

2.1. The use of computer hardware and software to store,retrieve and manipulate information

3. ADVANTAGE

3.1. 1 .Communication

3.2. 2. Storage

3.3. 3. Speed

4. Application of IT

4.1. EDUCATION

4.1.1. -Learning Management System

4.2. Finance

4.2.1. -Online banking

4.3. Govement

4.3.1. -HRMIS

4.4. Health care

4.4.1. -Counter Registrarion System

4.5. Science

4.5.1. -Virtual reality

4.6. Publishing

4.6.1. -Online Newspaper and Magazine

4.7. Travel

4.7.1. -Global Positioning System (GPS)

4.8. Manufacturing

4.8.1. -Computer-Aided Design

5. Categories of Computers

5.1. Supercomputer

5.2. Mainframe

5.3. Personal Computer

5.4. Mobile Computer and Devices

5.5. Embedded Computers

6. Supercomputer-Fastest and most powerful computer.Capable to process more than one quadrillion instructions in a single second

7. Mainframe-Large,expensive,powerful computer that can handle hundreds or thousands of connected user simultaneously.

8. Personal computer-A computer that can perform all of its input,processing, output and storage activity by itself

9. Mobile computer- personal computer you can carry from place to place.

10. Mobile device-Computing device small enough to hold in your hand

11. Embedded Computers-Special purpose computer that is function as a component in a larger product.