Chapter 1: Introduction of IT

1. Applications

1.1. FINANCE

1.1.1. FINANCE INVESTMENT SYSTEM ~ Inventors buy & sell stockand bond online without using broker

1.1.2. ONLINE BANKING SYSTEM ~ To pay bils,track personal income,and expenses,manage investment and evaluate financial plans

1.2. EDUCATION

1.2.1. LEARNING MANAGEMENT SYSTEM~ Students can get their lecture note,answerquizzes and submit assignment by using learning management system

1.2.2. COMPUTER BASED TRAINING ~ Uses computer - uses computer-generated visuals or environment for training such as flight simulator used by pilots before flying new plane or different types of plane

1.3. GOVERNMENT

1.3.1. E-FILING ~ Online system for declaring tax

1.3.2. E-SYARIAH ~ Online portal for providing information about the rules and procedures of the court

1.3.3. HRMIS ~ Online system for updating government employee information

1.4. HEALTH CARE

1.4.1. MEDLINE ~ Many websites provide up-to-date medical fitness,nutrition or exercise information

1.4.2. COUNTER REGISTRATION SYSTEM ~ Hospitals and doctors use computers and mobile devices to maintain and access patient record

1.4.3. TELEMEDICINE ~ Health care professionals in separate locations conduct live conference in the computer

1.4.4. TELESURGERY ~ Surgeon performs an operation on a patient who is not located in the same physical room as the surgeon

1.5. SCIENCE

1.5.1. VIRTUAL REALITY ~ Use of computers simulate a real or imagined environment that appears as 3D space

1.5.2. COCHLEAR ~ Use of computer technology to help user in hearing problem

1.5.3. HAWK EYE OFFICIATING SYSTEM ~ Complex computer targeting system thai is used to track the path an object thai is being developed for use in sports such as tennis and football

1.5.4. NEURAL NETWORK ~ A system that attempt to imitate the behavior of human brain

1.6. PUBLISHING

1.6.1. ONLINE NEWSPAPER & MAGAZINE ~ Allow user to get information easily by rerading newspaper & magazine online

1.7. TRAVEL

1.7.1. GLOBAL POSITIONING SYSTEM (GPS) ~ IT application that helps users to trackroutes for specific location

1.7.2. ONLINE RESERVATION SYSTEM ~ Transportation and accommodation reservation can be done through website

1.7.3. E-TICKETING ~ Online booking ticket

1.8. MANUFACTURING

1.8.1. COMPUTER-AIDED DESIGN ~ Use of computer systems to increase designer productivity and design quality

1.8.2. COMPUTER AIDED MANUFACTURING ~ Controls machine tools,mainly robot arms, in high tech assembly line. It used to speed up and improve accuracy of the process for task

2. Categories of Computers (Characteristic & Capabilities)

2.1. SUPERCOMPUTER

2.1.1. PHYSICAL SIZE ~ Size of supercomputer occupy a full room of equipment

2.1.2. SPEED ~ Tens of thousands of processors

2.1.3. STORAGE (REFERRING TO MEMORY) ~ Extremely large storage

2.2. MAINFRAME

2.2.1. PHYSICAL SIZE ~ Size of mainframe occupy partial room to a full room of equipment

2.2.2. SPEED ~ Dozens of processors

2.2.3. STORAGE (REFERRING TO MEMORY) ~ Very large & addable storage

2.3. PERSONAL COMPUTER

2.3.1. PHYSICAL SIZE ~ The size of personal computer fiits on a desk

2.3.2. SPEED ~ Single processor

2.3.3. STORAGE (REFERRING TO MEMORY) ~ Large

2.4. MOBILE COMPUTER

2.4.1. PHYSICAL SIZE ~ The size of mobile computer fits on your lap or in your hand

2.5. MOBILE DEVICES

2.5.1. PHYSICAL SIZE ~ Mobile devices such as smart phone size is fits in the palm of your hand or a pocket size

2.6. EMBEDDED COMPUTERS

2.6.1. PHYSICAL SIZE ~ Miniature. It is mounted on a circuit board and then installed in a machine or appliance using wires to carry input and output signals

3. Definition

3.1. `The use of computer,hardware & software to store,retrieve and manipulate information

4. Advantage

4.1. SPEED ~ Many computers can process billions or trillions of operations in a single second. Data,instruction,and information flow incredibly fast speeds.

4.2. RELIABILITY ~ The electronic components in computers are dependable and reliable because they rarely to break.

4.3. CONSISTENCY ~ A computer with same input will produce the same result consistently.

4.4. COMMUNICATION ~ Computers can communicate wirelessly with other computer and allow users to communicate with one another.

4.5. STORAGE ~ Computers can store enormous amounts of data and make this data available for processing anytime is needed.

5. Disadvantage

5.1. VIOLATION OF PRIVACY ~ Other person might steal our personal and confidential records if they were not protected properly

5.2. PUBLIC SAFETY ~ We might be a victim to crime if we are exposing or sharing out photos,videos or other personal information publicly

5.3. IMPACT ON LABOUR FORCE ~ Many employee might jobless if their skills have been replaced by computers.

5.4. HEALTH RISK ~ Prolonged or improper computer use can lead tohealth injuries. Behavioral health risks are computer addiction and tecnology overload.

5.5. IMPACT ON ENVIROMENT ~ Computer manufacturing process and computer waste can cause pollution.