1. Advantage
1.1. Speed
1.1.1. Computers can process billions or trillions
1.1.2. of operation in a single second
1.2. Communication
1.2.1. Can Communicate wirelessly
1.3. Storage
1.3.1. Can store enermous amount
1.3.2. of data
2. Disadvantage
2.1. Health Risk
2.1.1. Use computer for along time
2.1.2. can cause health risk
2.2. Public Safety
2.2.1. People can save or sharing photo
2.2.2. without permission
2.3. Violation of Privacy
2.3.1. Other person might be steal our personal
2.3.2. data if we not protected it.
3. Field
3.1. Education
3.1.1. Learning Management System(LMS)
3.2. Finance
3.2.1. Online Banking System
3.2.2. Electronic Payment System
3.3. Health Care
3.3.1. Telemedicine
3.3.2. Telepharmacy
4. Category of Computer
4.1. Supercomputer
4.1.1. Used for complex computation
4.1.2. Full room equipment
4.1.2.1. Can process trillions of instructions
4.2. Mainframe
4.2.1. Host large amount data
4.2.2. Partial to a full room of equipment
4.2.2.1. Can process millions instructions
4.3. Personal Computer
4.3.1. Use by one person
4.3.2. Fits on a desk
4.3.2.1. Computing power for home or office
5. DEFINITION
5.1. The use of Computer
5.1.1. Hardware
5.1.1.1. Software
5.1.1.1.1. Store, Retrieve and Manipulated information