Chapter 1 : Introduction To IT

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Chapter 1 : Introduction To IT by Mind Map: Chapter 1 : Introduction To IT

1. Definition

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

2. Advantage

2.1. Speed - users can use computers to search information easily because the computer can process billions or trillions of operations in a single second

2.2. Storage - computer can store very large amounts of data

2.3. Communication - users can communicate with each other from all around the world

3. Disadvantage

3.1. Public safety - may be a victim of crime due to exposed or shared photos, videos or other personal information

3.2. Impact on labour force - many employee might be jobless due to their skills being replaced by computers

3.3. Health risks - can cause healths risk such as eye strain if we spend too much time using the computer

4. Applications

4.1. Field

4.1.1. Education Learning Management System

4.1.2. Finance Online Banking

4.1.3. Government E-Syariah

4.1.4. Health Care Patient Registeration System

4.1.5. Science Hawk Eye Officiating System

4.1.6. Publishing Online newspaper & Online magazine

4.1.7. Travel Global Positioning System (GPS)

4.1.8. Manufacturing Computer Aided Design (CAD)

5. Categories of Computer

5.1. Supercomputer

5.1.1. Explanation Fastest & most powerful computer. Capable to process more than one quadrillion instructions in a single second

5.1.2. Physical size Occupies a full room of equipment

5.1.3. Speed Tens of thousands of processors

5.1.4. Storage Extremely large storage

5.2. Mainframe

5.2.1. Explanation Large, expensing, powerful computer that can handle hundreds or thousands of connected user simultaneously

5.2.2. Physical size Occupies a partial room of a equipment

5.2.3. Speed Dozens of processors

5.2.4. Storage Very large storage

5.3. Personal Computer

5.3.1. Explanation A computer that can perform all of its input, processing, output & storage activity by itself

5.3.2. Physical size Fits on a desk

5.3.3. Speed Single processor

5.3.4. Storage Large storage

5.4. Mobile Computer

5.4.1. Explanation Personal computer that you can carry from place to place

5.4.2. Physical size Fits on your lap or in your hand

5.5. Mobile Device

5.5.1. Explanation Computing device that is small enough to hold in your hand

5.5.2. Physical size Fits in the palm of your hand or a pocket

5.6. Embedded Computers

5.6.1. Explanation Special purpose computer that functions as a component in a larger product

5.6.2. Physical size Miniature.