Information Teachnology

definition: "The use of computer hardware & software to store, retrieve, and manipulate information"

advantages of IT

i) Globalization

ii) Communication

iii) cost effective

people can share ideas & information quickly & efficiently all around the world example by using social network

help make communication faster & more efficient yet cost

company profit increase-pay less for the cost of labour because computerize business process can increases the productivity

v) more convenient to shop

do online shopping anytime anywhere using websites such as lazada, zalora, amazon.

iv) bridging the cultural gap

allow for the exchanger of views and ideas of people from anywhere

vii) creation of new jobs

new employment opportunities created with the help of IT

Disadvantages of IT

i) unemployment

job done by machine make people become unemployment

ii) privacy

account information stored online vulnerable to hackers and might be exposed to public without our knowledge make irresponsible people might personal information online

iii) lack of job security

because technology keeps on changing rapidly

iv) dominant culture

influence teenagers on how they act,dress and behave. 1 culture will dominate another weaker one

applications of IT

  1. Education

educators turning to computer to assist with education examples: -learning management system , computer based training (CBT)

  1. Finance

examples: -online banking, online investing / finance investment system, loan processing system

  1. goverment

benefit of finance

-can be use 24 hours a day,7 days a week

save time and money

data can be download and analysed that can help planning budgets

examples: - JobsMalaysia, e-Filing ,e-Syariah,HRMIS

benefit of government:

efficiency & effectiveness goverment servies

ensurea right information (get right people at the right time)

accessiblity & conveniece hours 24 hours, 7 days week

disadvantages

risk of information because if the file server breaks down it become inaccessible and user cannot use the gorvernment servicces.

  1. health care

example:- medline , patient registration system & hospital management system

benefit

saves lives whether urgent diagnostic

enables more informed desicion making and enhanced quality of care

disadvantages

high cost of ICT

humsn/ people challenge need to ensure to retain talented It experts

  1. science

examples :- virtual reality, hawk-eye officiating system

  1. publishing

examples:- online newspaper. online magazine, online photo printing, online card printing

7.travel

air traffic controller, automatic toll payment system, airline reservation system, hotel reservation system, intellingence transportation system (ITS), Car navigation system by Global Positionong System (GPS)

  1. manufacturing

examples:- computer aided manufacturing (CAM), computer aided design (CAD), Vehicle assembly system

Categories of computers

  1. supercomputer

fastest, most powerful & most expensive computer

more than one quadrillion instructions in a single second

applications requiring complex, sophisticated mathematical calculations use supercomputer

example,

lange-scale simulations & application in medicine

online banking

automotive design

aerospace

weather forecasting

nuclear energy research

petroleum exploration

  1. mainframe

second largest computer

great processing speeds and data storage

able to bill millions pf customers, preparepayroll for thousands of employees, and manage thousands of items in inventory

respond up to 100s of milions of user at a time

example:

hospitals

universities

large business

banks or insurances

3.Personal computer

2 tyeps : desktop computer and notebook computer

perform all input, processing, output and storage activities by itself

contains a processor memory and one or more input, output, and storage devices

contain a communications device

moblie computer: can carry from place to place

mobile device : device small engough to hold in hand

  1. embedded computer

special purpose computer that funcions as a component in alarger product

are everywhere

example everyday products

  • Consumer electronics : mobile & digital telephones ,camera

-home automation devices: surity monitoring systems, appliancess

-automoblies: antilock brakes, airbag controlller

process controllers and robotics: remote monitoring systems, medical devices

computer devices and office machines : printer , fax and copy machines.