1. DEFINITION
1.1. The use of computer, hardware and software to store, retrieve and manipulated information
2. DISANVANTAGE
2.1. IMPACT ON ENVIRONMENT
2.1.1. Computer manufacturing process and computer waste can cause pollutiion
2.2. VIOLATION OF PRIVACY
2.2.1. Other person might steal our personal and confidential records if they were not protected properly
2.3. PUBLIC SAFETY
2.3.1. Might be victim to crime if we are exposing or sharing our photos, videos and personal information publicly
2.4. HEALTH RISK
2.4.1. Behavioral health risks are computer addiction and technology over load
2.5. IMPACT ON LABOUR FORCE
2.5.1. Many employee might jobless if their skills have been replaces by computer
3. APPLICATIONS OF INFORMATION TECHNOLOGY
3.1. EDUCATION
3.1.1. Computer Based Training
3.1.1.1. uses computer-generated visuals or environment for training such as flight simulator
3.1.2. Learning Management System
3.1.2.1. Student can get thier lecture note and submit assignment by using learning management system
3.2. FINANCE
3.2.1. Online Banking
3.2.1.1. To pays bills, track personal income and expenses, manage investment and eveluate financial plans
3.2.2. Finance Investment System
3.2.2.1. Inventors buy and sell stock and bond online without using broker
3.3. GOVERNMENT
3.3.1. E-Filing
3.3.1.1. Online system to declaring tax
3.3.2. E-Syariah
3.3.2.1. Online portal to providing information about the rule and procedure of the court
3.3.3. HRMIS
3.3.3.1. Online system for updating employee information
3.4. HEALTH CARE
3.4.1. Medline
3.4.1.1. Many web site provide up-to-date medical fitness, nutrisssion or excercise information
3.4.2. Counter Registration System
3.4.2.1. Hospital use for mantain and access patient record
3.4.3. Telemedicine
3.4.3.1. Health care professional in seperate location conduct live conference in the computer
3.4.4. Telesurgery
3.4.4.1. surgeon perform an operation while the patient not in the surgery romm
3.5. SCIENCE
3.5.1. Virtual Reality
3.5.1.1. Use computer to simulated a real or imagened environment that appears as 3d space
3.5.2. Cochlear Impant
3.5.2.1. Use of computer technology to hellp user in hearing problem
3.5.3. Hawk Eye
3.5.3.1. use to track the path of a object that is being developed for use in sport
3.5.4. Neural Network
3.5.4.1. A sustem that attempt to imiate the behavior of human brain
3.6. PUBLISHING
3.6.1. Online Newspaper & magazine
3.6.1.1. Alllow user to get informattion easily by reading online
3.7. TRAVEL
3.7.1. Global Posiotioning System (GPS)
3.7.1.1. IT application that helps user to track router for specific location
3.7.2. E-Ticketing
3.7.2.1. Online booking tickets
3.7.3. Online Reservation System
3.7.3.1. Transporting and accommodation reservation can be done through website
3.8. MANUFACTURING
3.8.1. Computer-Aided Design
3.8.1.1. To increase designer productivity and design quality
3.8.2. Computer Aided Manufacturing
3.8.2.1. Control machine tools, it used to speed up and improve accuracy of the proccess for task
4. ADVANTAGE
4.1. RELIABILITY
4.1.1. The electronic component in computer are dependable and reliable because they rarely to break
4.2. CONSISTENCY
4.2.1. A computer with same input will produce the same result consistently
4.3. SPEED
4.3.1. Computers can process billions or trillions of operations in a single second
4.4. STORAGE
4.4.1. Computer can storage a big amount of data and make this data available for processing anytime is needed
4.5. COMMUNICATION
4.5.1. Computers can communicate wirelessly with other computer and allow user communicate with one another
5. CATEGORIES OF COMPUTERS
5.1. MAINFRAME
5.1.1. Capable to process more than one quadrillion instructions in a single second
5.2. SUPERCOMPUTER
5.2.1. Fastest and most powerful computer
5.3. PERSONAL COMPUTER
5.3.1. A computer that can perform all of its input, processing, output and storage activity by itself
5.4. EMBEDDED COMPUTER
5.4.1. Special purpose computer that is function as a in a larger product
5.5. MOBILE COMPUTER AND DEVICES
5.5.1. Personal computer that you can carry to place to place