Information technology (IT) is the use of computer hardware and software to store, retrieve, and manipulate information
Advantages of Information Technology
- To efficiently and effective access and research for information via the internet
- Improves communication through communication technology
- Improve data storage and file management
- To manage finances via online banking
- To shop for products and services via online shopping
Disadvantages of Information Technology
- Reduce Job Oppurtunity
- Security breaches
- Higher Cost of hardware and software installation
- Health risks
- Over dependence on IT makes student less active and innovative
- Pirating
The Application of IT
Application in Education
- Learning management system
- Library Loan System
- Online Tuition
- Educational Software
- E-learning Web sites
- E-test
Application In Finance/Banking
- Online Banking
- Electrostatic Payment System
- Finance Investment System
- Online Investing system
Application in Health care
- Surgery Simulation
- Health Care Websites
- Telepharmacy
- Telepharmacy
- Telemedicine
- Telesurgery
Application in Science
- Capsule Endoscopy system
- Cochlear implants
- Electrodes implants
- Cardiac pacemaker implants
- Neural network
- Virtual reality
Application in Travel
- Global Positioning System (GPS)
- Car Navigation System
- Online reservation system/booking system
- E-Ticketing System
Application in Governmment
- e-Filing
- e-Penyata Gaji dan Laporan
- UPU online
- E-syariah
Application in Manufacturing
- Computer-aided manufacturing (CAM)
- Computer-aided desingn (CAD)
- Barcode system
Application inPublishing
- Online Photo Printing
- Online Card Printing
What is Computer?
A computer is a pogrammable electronic device that accepts data input,processes the data, outputs the results and stores the results.
Type of Computer
Supercomputers
Supercomputers is the fastest and most powerful type of computer that is capable of processing trillions of instructions per second
- Physical Size :Full room of equipment
- Speed:The fastest and most powerful type of somputer with thousand of processor capable of processesing trillions of instruction per second
- Storage:Highest storage capacity that can store complex and Sophisticated applications,and can store more than 20,000 times the data and information of an average desktop Computer
Mainframes
A large and powerful computer that can process millions of instructions per second and handle thousand of connected computers
- Physical Size :Partial room to a full room of equipment
- Speed:A large and powerful computer that can process millions of instructions per second and handle thousand of connected computers
- Storage : Larger storage capacity that can store data ,instructions , and information for business aplicatiobs and activities
Personal Computer
- Physical Size : Small computer from desktop to laptop that fits on a desk or fits on your lap
- Speed : based only microprocessor design for individuals to provide computing power for home and office environment
- Storage: ranges from GB to TB that can store home and office software
Mobile Computer
- Physical size : size of a paper notebook to fit in one hand
- Speed : based only microprocessor design for individuals to provide computing power for home and office environment
- Storage: ranges from GB to TB that can store home and office software
Mobile Devices
- Physical size : Pocket-sized computers
- Speed : based only microprocessor that contain built i computing or Internet capabilities
- Storage : up to GB
Embedded Computers
- Physical size :Tiny computer embedded into a product
- Speed : tiny specialized microprocessor installed in smart appliances and automobiles
- Storage : normally in KB
