The document discusses different types of Internet connections. It describes dial-up, DSL, wireless, cable, satellite, and cellular/broadband connections. For each type, it provides details on the technology used, typical speeds, and how the connection is established between the user and Internet service provider. The document also defines several Internet protocols used for tasks like email, file transfer, and accessing web pages.

2. ➢What is Internet ?
➢What are different internet
protocols ?
➢Different Types of internet
connections ?

3.  The Internet is the global system of
interconnected computer networks that uses
the Internet Protocol Suits (TCP/IP) to
communicate between networks and devices
 The internet is the wider network that allows
computer networks around the world run by
companies, governments, universities and
other organizations to talk to one another

4. ❑ Internet Services
➢it allows us to access huge
amount of information such
as text, graphics, sound and
software over the internet.
➢Following diagram shows
the four different categories
of Internet Services

5. ❑ World Wide Web (WWW)
❖ It is collection of information which is accessed via the Internet
❖ WWW is also known as W3. It offers a way to access documents spread over the
several servers over the internet. These documents may contain texts, graphics, audio,
video, hyperlinks. The hyperlinks allow the users to navigate between the documents

6. ❑ INTERNET PROTOCOLS
It is one of the internet terminology
• Different Protocols
TCP/IP (Transmission Control Protocol)
HTTP (hyper Text Transfer Protocol)
FTP (File Transfer Protocol)
SMTP (Simple Mail Transfer Protocol)
POP (post office Protocol)
NNTP (Network News Transfer Protocol)

7. ❖TCP (Transmission Control
Protocol) is a standard that defines
how to establish and maintain a
network conversation through
which application programs can
exchange data.
❖TCP works with the Internet
Protocol (IP), which defines how
computers send packets of data to
each other.

8. ✓HTTP means Hypertext Transfer Protocol.
✓HTTP is the underlying protocol used by the World Wide Web and this protocol
defines how messages are formatted and transmitted, and what actions Web servers
and browsers should take in response to various commands
✓HTTP clients generally use Transmission Control Protocol (TCP) connections to
communicate with servers.

9. •The File Transfer Protocol (FTP) is a
standard network protocol used for the
transfer of computer files between a
client and server on a computer network.
•FTP is built on a client-server model
architecture using separate control and
data connections between the client and
the server
File Transfer Protocol

10. ❑Simple Mail Transfer Protocol
(SMTP) is the standard
protocol for email services on a
TCP/IP network.
❑SMTP provides the ability to
send and receive email
messages. SMTP is an
application-layer protocol that
enables the transmission and
delivery of email over the
Internet

11. ❑Post Office Protocol (POP) is a type of computer networking and Internet standard protocol
that extracts and retrieves email from a remote mail server for access by the host machine.
❑POP is an application layer protocol in the OSI model that provides end users the ability to
fetch and receive email

12. ➢The Network News Transfer Protocol (NNTP) is an application protocol used
for transporting Usenet news articles (Netnews) between news servers and for
reading and posting articles by end user client applications
➢It is successful protocol for exchanging ideas between people
➢Now a days news group channels are using NNTP protocol for the successful
delivery of their news articles

13. ✓Intranet
✓Extranet
✓Web server
✓Web client
✓URL Address
✓Internet Protocols

14. ✓Dial Up Connection
✓DSL Connection
✓Wireless Connection
✓Cable Connection
✓Satellite Connection
✓Cellular Connection / Broad band
An internet can be connected through various types

15.  Dial-up Internet access is a form of
Internet access that uses the facilities of
the public switched telephone network
to establish a connection to an Internet
service provider by dialing a telephone
number on a conventional telephone
line
The first dial-up connection was
made in 1965 by Lawrence G. Roberts

16.  A digital subscriber line (DSL) modem is a device used to
connect a computer or router to a telephone line which
provides the digital subscriber line service for
connection to the Internet, which is often called DSL
broadband
 DSL started to become popular in the 1980s and 1990s
 In the early days of the "World Wide Web" (we're
talking 1990s, not 1890s), your telephone company
provided what was called "dial-up" service, which was
slow and tied up your telephone line. In response to the
fast-growing demand for Internet access—and faster,
better connections—DSL was developed. Ptcl in our
homes

17.  In networking terminology, wireless is the term used to describe any
computer network where there is no physical wired connection between
sender and receiver, but rather the network is connected by radio waves and/or
microwaves to maintain communications
 In networking terminology, wireless is the term used to describe any
computer network where there is no physical wired connection between
sender and receiver, but rather the network is connected by radio waves and/or
microwaves to maintain communications

18. •Personal area network (PAN)
•Within reach of a person (Range)
•Bluetooth, ZigBee, NFC (Standards)
•Local area network (LAN)
•Within a building or campus
• IEEE 802.11(WiFi)
•Metropolitan area network (MAN)
•Within a city
•IEEE 802.15 (WiMAX)
•Wide area network (WAN)
•Worldwide Cellular
• (UMTS, LTE, etc.)

19.  Cable internet uses the same types of cables that transmit cable TV services.
 It has broadband capability and thus can reach high speeds.
 It is usually available through current or former cable TV providers in their
respective areas.
 Cable internet speeds are usually similar to DSL speeds, but can be even
faster in some areas

20.  A satellite Internet connection is an arrangement in which the upstream (outgoing) and the
downstream (incoming) data are sent from, and arrive at, a computer through a satellite.
 Each subscriber's hardware includes a satellite dish antenna and a transceiver
(transmitter/receiver) that operates in the microwave portion of the radio spectrum
 Firms that offer or plan to offer two-way satellite Internet include StarBand, Pegasus Express,
Teledesic and Tachyon. Tachyon service is available today in the United States, Western
Europe and Mexico

21.  Why Use Satellite Internet?
❖ The only reason why you might use satellite internet is if you live in an
area where other internet options such as cable or DSL isn’t available. If
you’re on dialup then satellite internet will be an “upgrade” in the sense
that satellite internet is considerably faster

22.  Broadband internet is provided by mobile phone companies and
telecommunication companies.
 Most mobile phone users avail of this service. Broadband internet
provider sets up a tower, which supplies internet connectivity.
 The user connects to the tower through the device provided by the
internet provider.
 PTCL has its broadband service in the name Of EVO, which is the best
Internet device in Pakistan. It typically charges 3000 Rs for a viable
package. Other broadband services
 Include Zong 4G, Jazz Internet, Witribe, Telenor Internet , PTCL holds
the award for being the best internet provider in Pakistan.
 Through a broadband connection, the average Pakistani user can buy
a one-month simple internet package in 1500 Rs