1. Definition
1.1. The use of computer, hardware and software to store, retrieve and manipulate information
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 System
2.3. Government
2.3.1. E-filing
2.3.2. E-Syariah
2.3.3. HRMIS
2.4. Health Care
2.4.1. Counter Registration System
2.4.2. Telemedicine
2.4.3. Telesurgery
2.5. Science
2.5.1. Virtual reality
2.5.2. coachlear implant
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. E-ticketing
2.8. Manufacturing
2.8.1. Computer-Aided Design
2.8.2. Computer Aided Manufacturing
3. Categories of Computers
3.1. Supercomputer
3.1.1. Fastest and most powerful computer. Capable to process more than one quadrillion instructions in a single second.
3.2. Mainframe
3.2.1. Large, expensive, powerful computer that can handle hundreds or thousands of connected user in a single second.
3.3. Personal Computer
3.3.1. A computer that can perform all of its input, processing, output and storage activity by itself.
3.4. Mobile Computer
3.4.1. Personal computer you can carry from place to place.
3.5. Mobile Devices
3.5.1. Computing device small enough to hold in your hands.
3.6. Embedded Computers
3.6.1. Special purpose computer that is function as a component in an large product.
4. Advantages of IT
4.1. Speed
4.1.1. Computer can process billions or trillions of operaration in a single second
4.2. Reliability
4.2.1. The electronic components in computers are dependable and reliable because they rarely to break
4.3. Consistency
4.3.1. A computer with the same input will produce the same results consistenly
4.4. Communication
4.4.1. Computer allow the user to communicate with other people all aroud the world easily
4.5. storage
4.5.1. Can be used to store large amounts of data and information.
5. Disadvantage of IT
5.1. Violation of privacy
5.1.1. Other person might steal our personal and confidential records if they were not protected properly.
5.2. Public safety
5.2.1. We might be a victim to crime if we are exposing or sharing our photos, videos or other personal information publicly.
5.3. Impart of labour force
5.3.1. Computer have improved productivity. This will make computer replaced many labours.
5.4. Health risk
5.4.1. Computer can lead to injuries such as back pain and eye strain if we spend to much time or improper way of using the computer.
5.5. Impact on enviroment
5.5.1. Computer manufacturing process and computer waste can cause pollution.