1. Categories of Computers
1.1. Supercomputer
1.1.1. Size
1.1.1.1. Full room of equipment.
1.1.2. Speed
1.1.2.1. Tens of thousands of processors.
1.1.3. Storage
1.1.3.1. Extremel.y large storage.
1.1.3.1.1. ex: 3.1 PB.
1.2. Mainframe
1.2.1. Size
1.2.1.1. Partial room to a full room of equipment.
1.2.2. Speed
1.2.2.1. Dozens of processors.
1.2.3. Storage
1.2.3.1. Very large & addable storage.
1.2.3.1.1. es: 4.6 TB
1.3. Personal computer
1.3.1. Size
1.3.1.1. Fits on a desk.
1.3.2. Speed
1.3.2.1. Single processor.
1.3.3. Storage
1.3.3.1. Large.
1.4. Mobile computer
1.4.1. Size
1.4.1.1. Fits on your lap.
1.5. Mobile devices
1.5.1. Size
1.5.1.1. Fits in the palm.
1.6. Embedded computer
1.6.1. Size
1.6.1.1. Miniature.
2. Applications
2.1. Education
2.1.1. Learning Management System
2.1.2. Computer Based Training
2.2. Finance
2.2.1. Finance Investment System
2.2.2. Online Banking
2.3. Government
2.3.1. E-filing
2.3.2. E-Syariah
2.4. Health care
2.4.1. Medline
2.4.2. Counter Registration System
2.4.3. Telemedicine
2.4.4. Telesurgery
2.5. Science
2.5.1. Virtual reality
2.5.2. Coch;ear implant
2.5.3. Hawk Eye Officiating System
2.5.4. Neural network
2.6. Publishing
2.6.1. Online newspaper
2.6.2. Online magazine
2.7. Travel
2.7.1. Global Positioning System (GPS)
2.7.2. Online Reservation System
2.7.3. E-ticketing
2.8. Manufacturing
2.8.1. Computer-Aided design
3. Definition
3.1. The use of computer hardware and software to store,retrieve and manipulate information.
4. Advantages
4.1. Speed
4.1.1. Can process billions or trillions of operation in a single second
4.1.2. Data,instructions, and information flow incredibly fast speeds.
4.2. Communication
4.2.1. Can communicate wirelessly with other computer.
4.2.2. Allow user to communicate with one another.
4.3. Storage
4.3.1. Can store enormous amounts of data
4.3.2. Make this data available for processing anytime is needed.
4.4. Reliability
4.4.1. The electronic components in computers are dependable and reliable.
4.5. Consistency
4.5.1. A computer with same input will produce the same results.
5. Disadvantage
5.1. Health risk
5.1.1. Prolonged or improper computer use can lead to health injuries.
5.1.2. Behavioral health risks are computer addiction and technology over load.
5.2. Violation of privacy
5.2.1. Other person might steal our personal and confidential records.
5.3. Public safety
5.3.1. We might be a victim to crime.
5.4. Impact on labour force
5.4.1. Many employee might jobless.
5.5. Impact on environment
5.5.1. Computer manufacturing process and computer waste can cause pollution.