1. Advantages
1.1. can process billions and trillions of operation in a single second
1.2. easy to comunicated to othes people around the word
1.3. can save more and enemous amount of data
2. Disadvantages
2.1. might be a victim to cyber crime
2.2. many employee might jobless due the take over of IT
2.3. improper computer used might lead us to health injuries
2.4. computer manufacturing process and computer waste can cause pollution
3. Categories of computers
3.1. supercomputer
3.1.1. fastest and most powerful computer . capable to process more than one quadrillions instruction in a single second
3.2. mainframe
3.2.1. large , expensive , powerful computer that can handle hundreds or thousands of connected user simultaneously
3.3. personal compuer
3.3.1. A computerthat can perform all of its input , processing , output and storage activity by itself
3.4. mobile computer and devices
3.4.1. mobile computer
3.4.1.1. can carry from place to place
3.4.2. mobile divices
3.4.2.1. small enough that can hold with your hand
3.5. embedded computers
3.5.1. special purpose computer that is function as a component in a large product
4. definition
4.1. the use of computer , hardware , software to store , retrieve , and manipulate information
5. Application of information technology
5.1. education
5.1.1. learning management system
5.1.2. computer based training
5.2. finance
5.2.1. finance investment system
5.2.2. online banking
5.3. goverment
5.3.1. E-filling
5.3.2. E-syariah
5.3.3. HRMIS
5.4. health care
5.4.1. Medline
5.4.2. counter registration system
5.4.3. Telemedicine
5.4.4. Telesurgery
5.5. science
5.5.1. virtual reality
5.5.2. cochlear implant
5.5.3. hawk eye officiating system
5.5.4. neural network
5.6. publishing
5.6.1. online newspaper and online magazine
5.7. travel
5.7.1. global positioning system
5.7.2. online reservation system
5.7.3. E-tictketing
5.8. manufacturing
5.8.1. Computer-Aided Design (CAD)
5.8.2. Computer-Aided Manufacturing (CAM)