1. Application
1.1. Education
1.1.1. Learning Management System
1.1.2. Computer Based Training
1.2. Finance
1.2.1. Finance Investment System
1.2.2. Online Banking
1.3. Government
1.3.1. e-Filing
1.3.2. e-Syariah
1.4. Health Care
1.4.1. Medline
1.4.2. Counter Registration System
1.4.3. Telemedicine
1.4.4. Telesurgery
1.5. Science
1.5.1. Virtual Reality
1.5.2. Cochlear Implant
1.5.3. Hawk Eye Officiating System
1.5.4. Neural Network
1.6. Publishing
1.6.1. Online Newspaper
1.6.2. Online Magazine
1.7. Travel
1.7.1. Global Positioning System
1.7.2. Online Reservation System
1.7.3. e-Ticketing
1.8. Manufacturing
1.8.1. Computer Aided Design
1.8.2. Computer Aided Manufacturing
2. Categories of Computers
2.1. Supercomputer
2.1.1. Occupied full room of equipment
2.1.2. Tens of Thousand of Processor
2.1.3. Exremely Large Storage
2.2. Mainframe
2.2.1. Occupied partial room to a full room of equipment
2.2.2. Dozens of Processor
2.2.3. Very large & addable Storage
2.3. Personal Computer
2.3.1. Fits on a desk
2.3.2. Single Processor
2.3.3. Large Storage
2.4. Mobile Compuer
2.4.1. Fits on lap or hand
2.5. Mobile Devices
2.5.1. Fits in palm of hand or pocket size
2.6. Embedded Computer
2.6.1. Miniature
2.6.2. Mounted on a circuit board
2.6.3. installed in a machine/appliance to carry input and output
3. Definition
3.1. The use of computer, hardware, siftware to store, retrieve and manipulate information
4. Advantage
4.1. Speed
4.1.1. Trillions of operation in a second
4.2. Reliability
4.2.1. Electronic component rarely break
4.3. Consistency
4.3.1. Produce same results repetitively
4.4. Communication
4.4.1. Connected wirelessly with other Computer
4.5. Storage
4.5.1. Store enomous data available for processing anytime is neeed
5. Disadvantage
5.1. Privacy Violation
5.1.1. Other person can access confidential records if it's not secure properly
5.2. Public Safety
5.2.1. Might be a victim to crime if we.re to expose our personal information
5.3. Impact on Labour
5.3.1. Their skill have been replaced by machine
5.4. Health Risk
5.4.1. Behavioral (addiction)
5.4.2. Prolonged computer leads to injuries
5.5. Impact on environment
5.5.1. Computer waste caused pollution