3. Contents
Introduction to the Internet
Definition
Network
Brief History
Basic Services of internet
Electronic mail
File Transfer Protocol (FTP)
Telnet
Usenet news
The World Wide Web
Social Network
Uses of Internet
Advantages
Disadvantages
Cyber Crime
Questions
4. What is a Network?
A computer network is an interconnection
of a group of computers.
5. How did the Internet developed?
The internet first came about in February 1958 in America
A man named JCR Licklider saw universal networking as a
potential unifying revolution.
He envisioned a globally interconnected set of computers
through which everyone could quickly access data and
programs from any site.
The internet began to grow rapidly in the 1970’s as the
knowledge of networking was growing more and more rapidly.
It expanded further in the 1980’s as the general public were beco
ming more aware of it.
The general public gained access to the Internet on July
16, 1986 when the first Freenet came on-line in Cleveland in
the U.S.
Between 1987 and 1988 the number of hosts increased from
10,000 to 60,000
6. With the development of the World Wide Web (WWW) in 1991, th
ere was no stopping the rapid expansion of the Internet.
People only had to download a WWW browser in order to
access the info on millions of websites. Countries around the
world joined the Internet and registered their two-letter domain na
mes, e.g. pk for Pakistan.
The most important development was in 1993 was the release
of the first graphic web browser software, Mosaic.
In 1998, the Internet continued to grow, with thousands of new su
bscribers every day joining the millions already subscribed.
8. Basic Services of Internet
Electronic mail
File Transfer Protocol (FTP)
Telnet
Usenet news
The World Wide Web
Social Networking
9. Electronic Mail
It is also known as e-mail in short
It enables to send and receive a
mail (message).
It is Faster than paper mail.
Images, audio, video can be sent
along with text.
10. File Transfer Protocol (FTP)
It enables users to move a file from one
computer to another computer.
A file may contain:
Text document
Image
Artwork
Movie
Sound
Software
11. Telnet
Telnet service enables users to login to another computer on inte
rnet from their local computer for using:
Computing power of remote computer
Software on remote computer
Database of remote computer
This action is called ‘remote login’.
12. Usenet News
Usenet news service enables a group of internet users to exchange
their views, ideas, information on some common topic of internet.
A newsgroup is like a large notice board accessible to all members
belonging to the group.
2 types of newsgroups:
Moderated
Non-moderated
13. The World Wide Web
It is a most popular method of accessing internet.
It uses a concept called hypertext.
Hypertext documents on internet are known as web pages.
Web pages are created by using a special language called
Hyper Text Markup Language (html)
14. Social Networking
Now a days, Social networking system is very
common.
These network help in sharing knowledge discussion
on a specific topic, problems and their solutions.
Some of the most famous social networks are enlist
below:
Facebook
Twitter
Whatsapp
Imo
Instagram
16. Checking emails
It is reported that the first thing that 90 % of Internet users do
when they connected to the net is to check if they have received
any emails.
Internet has drastically changed the mail pattern and has made it
incredibly fast.
17. Download
It is hard to find an Internet user, who has not used it to
download music and movies.
Apart from it, there are lots of other things that can be
downloaded using internet as well.
18. Search For Relevant Information
If you are not sure about something, then one of the easiest
way to know more about it is by searching it on internet.
Internet has got a huge database of information on almost
every subject and one can easily find out lots of information
on any topic using internet.
19. Shop Online
The use of internet is not limited merely to booking tickets. With
help of net, you can do a full-fledged online shopping. On popular
e-stores like Ebay, Amazon etc. one can find almost anything that
he needs to buy.
These e-stores are reliable and you can find quality products at
most competitive rates on them; and all this can be done without
even stepping out of your home!
21. The internet has many more advantages than it does disadvantages
according to research.
Allows easy and quick access to information
Enables user to access files and information from any computer
anywhere in the world
People can check financial information, purchase products, talk
to people and much more online
Downloading music- quick and easy
User can send information quickly from computer to computer
Advantages:
22. The Internet is becoming the
town square for the global
village of tomorrow.
-Bill Gates
23. Disadvantages:
It promotes violence and bad behaviour within society, as it
contains violent videos and other disturbing images
It can encourage negative activities such as pornography
and paedophilia, these things can now be explored more
openly due to the internet
It stops children from going out, as they wish to stay home
and use the internet to talk to friends etc.
26. Introduction
The internet in Pakistan is growing rapidly. It has given
rise to new opportunities in every field we can think of
be it entertainment, business, sports or education.
There’re two sides to a coin. Internet also has it’s own
disadvantages is Cyber crime- illegal activity committed
on the internet.
Cybercrime is nothing but where the computer used
as an object or subject of crime…
29. Cyber Terrorism
Use of Internet based attacks in terrorist activities.
Technology savvy terrorists are using 512-bit encryption, which
is impossible to decrypt.
30. Safety Tips for Cyber Crime
Use antivirus software’s.
Insert firewalls.
Uninstall unnecessary software
Maintain backup.
Check security settings.
Stay anonymous - choose a
genderless screen name.
Never give your full name or
address to strangers.
Learn more about Internet
privacy.
31. Cyber Security
Internet security is a branch of computer security specifically
related to the Internet.
It's objective is to establish rules and measure to use against
attacks over the Internet.
32. Advantages of Cyber Security
Defend us from critical attacks.
Browse the safe website.
Internet security process all the incoming and outgoing data
on our computer.