Transcript Edmodo group code jr4st1 INTRODUCTION to INFORMATION TECHNOLOGY What is Information Technology? According to the Information Technology Association of America (ITAA): Information Technology is the study, design, development, implementation, support.

Edmodo group code
jr4st1
INTRODUCTION to
INFORMATION
TECHNOLOGY
What is Information Technology?
According to the Information Technology
Association of America (ITAA):
Information Technology is the study,
design, development, implementation,
support or management of computerbased information systems, particularly
software applications and computer
hardware.
What is Information Technology?
• IT deals with the use of electronic
computers and computer software to
convert, store, protect, process, transmit
and retrieve information, securely.
• Recently it has become popular to
broaden the term to explicitly include the
field of electronic communication so that
people tend to use the abbreviation ICT
INFOTECH
When computer and
communications technologies are
combined, the result is information
technology—”infotech”—defined as
technology that merges computing
with high-speed communications
links carrying data, sound, and
video.
COMPUTER
• Electronic device operating under the
control of instructions stored in its own
memory
• A programmable, multiuse machine
that accepts data—raw facts and
figures—and processes, or
manipulates, it into information we can
use.
COMM TECH
• Communications technology, also called
telecommunications technology, consists of
electromagnetic devices and systems for
communicating over long distances.
• Online means using a computer or other
information device, connected through a
voice or data network, to access information
and services from another computer or
information device.
TIDBITS: Evolution of Telephone
• Cellphone mania has swept the world.
• In 1973, the first cellphone call was processed.
• It is now becoming more versatile—a way of
connecting to the Internet and the World Wide
Web.
• Infotech phones provide a direct, wireless
connection that enables you to browse the
World Wide Web and receive all kinds of
information
• Sending and receiving e-mail is also possible
through a cellphone.
Communications & Cyberspace
• Communications is extending into
every nook and cranny of civilization. It
has been called the “plumbing of
cyberspace.”
• Cyberspace encompasses not only the
online world and the Internet in
particular but also the whole wired and
wireless world of communications in
general.
CYBERSPACE
The two most important
aspects of cyberspace are
the Internet and that part of it
known as the World Wide
Web.
INTERNET
• the mother of all networks
• The Internet is a worldwide
network that connects up to
400,000 smaller networks in
more than 200 countries.
WORLD WIDE WEB
• the multimedia part of the Net
• The Internet has actually been around
for more than 30 years. But what made
it popular, apart from e-mail, was the
development of the World Wide Web an interconnected system of
computers all over the world that store
information in multimedia form.
MACHINES / APPLIANCE
• A machine is any device that uses
energy to perform some activity.
• In common usage, the meaning is
that of a device having parts that
perform or assist in performing
any type of work.
CATEGORIES
• Household Appliances
– Small Appliances
– Major Appliances
– Tools/Gadgets
• Information Appliances
• Computer Appliances
– Internet Appliance
– Network Appliance
INFORMATION APPLIANCES
• any machine or device that is usable
for the purposes of computing,
telecommunicating, reproducing, and
presenting encoded information in
myriad forms and applications.
• an appliance that is specially designed
to perform a specific user-friendly
function —such as playing music,
photography, or editing text.
Distinguish!
Distinguish!
Distinguish!
Distinguish!
Distinguish!
Distinguish!
Distinguish!
Data vs. Information
• Data
– A “given,” or fact: a number, a statement, or
a picture
– The raw materials in the production of
information
• Information
– Data that have meaning within a context
– Raw data or data that have been
manipulated
Information Processing Cycle
• Input
• Process
• Output
• Storage
• Communication