Summary of Chapter 1

 TOPIC 1 : INTRODUCTION TO INFORMATION      TECHNOLOGY

1.1 Overview of Information Technology

Explain Information Technology

Definition Information Technology : Is the use of computer hardware and software to store, retrieve, and manipulate information

Advantages of IT :

• To efficiently and effectively access and search for information
• Improves communication trough communication technology
• Improves data storage and file management
• To manages finances via online banking
• To shop for products and service via online shopping

Disadvantages of IT :

• Reduce job opportunity
• Security breaches
• Higher cost of hardware and software installation
• Health risks
• Over independence on IT makes students less active and innovative
• Pirating

Discuss the Applications of IT

      Education

• Learning management system
• Library Loan System
• Online Tuition
• Educational Software
• E-learning Web sites
• E-test

      Finance/Banking

• Online Banking
• Electronic payment system
• Finance Investment System
• Online investing system

     

     Health Care

• Surgery Simulation
• Health care website
• Telepharmacy
• Telemedicine
• Telesurgery
• Monitoring of patient

    Science

• Capsule Endoscopy system
• Cochlear Implants
• Electrodes implant
• Cardiac peacemaker implant
• Neural Network
• Virtual Reality

     Travel

• Global Positioning System (GPS)
• Car Navigation System
• Online reservation system/booking system
• E-ticketing system

     Government

• e-Filling
• e-Penyata Gaji dan Laporan
• UPU online
• E-syariah

     Manufacturing

• Computer-aided manufacturing
• Computer-aided design

     Publishing

• Online Photo Printing
• Online Card Printing

Categories of Computers

Category	Physical Size	Speed	Storage
Supercomputer	Full room of equipment	The fastest and most powerful type of computer with thousands of processor capable of processing trillions of instructions	Highest storage capacity
Mainframes	Partial room to a full room of equipment	A large and powerful computer that can process trillions of instruction per second and handle thousands of connected computers	Larger storage capacity
Personal Computer eg. Desktop, Laptop	Small computer from desktop to laptop computers that fits on a desk or fits on your lap	A computer based on a microprocessor designed for individuals and businesses, capable to provide computing power for home and office environment	Storage capacity ranges from GB to TB
Mobile Computer e.g. Laptop, Tablet PC	Computers that are designed to be carried around easily about the size of a paper notebook to fit in one hand	A computer based on a microprocessor designed for individuals and businesses, capable to provide computing power for home and office environment	Storage capacity ranges from GB to TB
Mobile Devices e.g. Smartphone, Portable Media Player	Very small communications device	A computer based on a microprocessor that contain built-in computing or Internet capabilities	Storage capacity up to GB
Embedded Computers e.g. Consumer Electronics, Automobiles, Process Controllers and Robotics, Office Machines	A tiny computer embedded into a product (installed in a device)	Tiny specialized microprocessor installed in smart appliances and automobiles	Storage capacity normally in KB