Information technology involves the use of computers and communication technology to store, process, transmit, and retrieve information. It has evolved over time from premechanical methods like drawings to today's digital world. Key developments included the invention of computers in the 1940s and connecting them through the internet. IT is now used across many fields like education, healthcare, business, government and more. While it provides benefits like lower costs and global access, it also presents disadvantages such as potential job losses and privacy issues.
2. Contents
▪ What is information technology?
▪ Computer technology and communication technology
▪ History of Information technology
▪ The role of information technology
▪ Competency in IT
▪ Advantages and disadvantages of IT
5. So,....
Information Technology
(IT)
is a general term that describes any
technology that helps to
produce, manipulate, store, communicate,
and/or disseminate information.
6. So,....
Information Technology
(IT)
is the study, design, development,
implementation, support or management
of computer-based information systems,
particularly software applications and
computer hardware.
(Information Technology Association of America (ITAA))
7. Computer Technology &
Communication Technology
▪ Computer Technology
A computer is a programmable, multiuse machine that accepts
data—raw facts and figures—and processes, or manipulates, it into
information we can use, such as summaries, totals, or reports. Its
purpose is to speed up problem solving and increase productivity.
▪ Communication Technology
also called telecommunications technology, consists of
electromagnetic devices and systems for communicating over long
distances. The principal examples are telephone, radio, broadcast
television, and cable TV.
8. The addition of communication among
computers—which is what happens
when people “go online” on the
internet.
9. The Era of Information
Technology
Premechanical Electromechanical
3000
Now
B.C.
Mechanical Electronic
10. History Of Information
Technology
1.Premechanical
(3000 B.C. –
1450 A.D.)
When humans first started
communicating they would
try to use language or simple
picture drawings known as
petroglyths which were
usually carved in rock.
11. History Of Information
Technology
2. Mechanical
(1450 -1840)
Technologies like the slide
rule (an analog computer used
for multiplying and dividing)
were invented. Blaise Pascal
invented the Pascaline which
was a very popular
mechanical computer. Charles
Babbage developed the
difference engine which
tabulated polynomial
equations using the method
of finite differences.
12. History Of Information
Technology
3. Electromechani
cal (1840 –
1940)
These are the beginnings of
telecommunication. The
first large-scale automatic
digital computer in the
United States was the Mark
1 created by Harvard
University around 1940.
13. History Of Information
Technology
4. Electronic (1940
– Now)
There are 4 main sections of
digital computing.
1. The era of vacuum tubes,
punch cards and rotating
magnetic drums
2. The era of transistors,
magnetic tape and magnetic
cores
3. The era of integrated circuits
(ICs)
4. The era of CPUs (Central
Processing Units) which
contained memory, logic, and
control circuits all on a single
chip
14. How is Information Technology
being Used in Education?
IT in education: The promise of more interactive & individualized learning
15. How are Information Technology
being Used in Health and
Medicine?
IT in health: High tech for wellness
18. In what ways are computers
changing government and
politics?
19. How are
Information Scientific
Practices
Technology
being Used in
creativity and
productivity?
IT
Business Cultural
Practices Practices
Information Technology
20. Competency in IT
▪ Feel comfortable using and operating a computer system
▪ Be able to make the computer work for you
▪ Be able to interact with the computer
▪ Be comfortable in cyberspace
▪ Understand the impact of computer on society, now and in the future
▪ Be an intelligent consumer of computer hardware and software
▪ Be conversant in the language of computer and information
technology
21. Advantages and
Disadvantages of IT
Advantages Disadvantages
▪ Globalization ▪ Unemployment
▪ Communication ▪ Privacy
▪ Cost effectiveness ▪ Lack of job security
▪ Bridging the cultural gap ▪ Dominant culture
▪ More time
▪ Creation of new jobs