3. Disclaimer: This presentation is prepared by trainees of
baabtra.com as a part of mentoring program. This is not
official document of baabtra.com – Mentoring Partner
4. What is Internet ?
• The internet is a world-wide network of
computers that linked together by wired or
wireless connection.
• Internet has been coined from two terms,
interconnection and network.
• two categories: servers and browsers.
5. How was Internet developed?
• Internet was born in late 1960’s
• The internet has its root in the ARPANET
system of the Advanced Research Project
Agency of U.S. Department of Defense.
• ARPANET is known as the forefather of
internet.
7. • Servers make this information available to the
general public
• Browsers are what people use to access the
information
• Internet Service Provider (ISP) server
8. Web Server And Server
The Web server
• A Web server handles the HTTP protocol.
When the Web server receives an HTTP
request, it responds with an HTTP response,
such as sending back an HTML page.
The application server
• An application server exposes business logic
to client applications through various
protocols, possibly including HTTP.
9. Different Types of Server
• Proxy Server
It acts as a mediator between a client program
and an external server to filter requests,
improve performance and share connections.
• Telnet Server
It enables the users to log on to a host
computer and execute tasks as if they are
working on a remote computer.
10. • FTP Server
It works on one of the oldest of the Internet
services, the file transfer protocol. It provides
a secure file transfer between computers
while ensuring file security and transfer
control.
• Mail Server
It transfers and stores mails over corporate
networks through LANs, WANs and across the
Internet.
11. • To view a web page from your browser:
1. Type an address (URL) in "Address Bar" or
click on a hyperlink.
2. Browser sends a request to ISP server.
3. ISP server looks for the exact host server
which website in question, then sends a
request to that host server for the page.
12. 4. The host server sends the requested page to
ISP server.
5. ISP sends the page to browser.
13. IP Address
• To facilitate the routing of packets over a
network the TCP/IP protocol suite uses a
logical address known as an IP address
• An Internet Protocol address (IP address) is a
numerical label assigned to each device
Two functions:
• network interface identification
• location addressing.
16. • The Class A address uses only the first octet (8
bits) of the 32-bit number to indicate the
network address.
• The remaining three octets of the 32-bit
number are used for host addresses.
• The Class B address uses two of the four
octets (16 bits) to indicate the network
address
• The remaining two octets specify host
addresses.
17. • This scheme is known as “dotted decimal
notation.”
Internet Protocol Version 6 (IPv6) - 128 bits.
19. • Wireless WAN (WWAN)
• Satellite services
• Wireless LANs (WLAN)
Wireless Internet Connections
20. Domain name
• A domain name is a unique name that
identifies an internet resource such as a
website.
• Domain names are formed by the
rules Domain Name System (DNS). Any name
registered in the DNS is a domain name.
21. Uses of Internet
1. Social Networking
– Provides medium for people to connect and
interact with each other.
– Facebook, Twitter, Myspace, Instagram, Google+
22. 2. Communication
– Chat with your contacts directly within Gmail.
– You can even talk face-to-face with built-in video
chat.
23. 3. Education.
– Distance learning.
– Reference books, online help centres, Study
oriented material are on the internet.
4. Financial Transactions
- Internet Banking
- Payment of Bills
24. 5. Research
– Gathering, analyzing and sharing information
– The Internet is a wealth of information and is one
of the best ways to find information fast and
efficiently.
25. Want to learn more about programming or Looking to become a good programmer?
Are you wasting time on searching so many contents online?
Do you want to learn things quickly?
Tired of spending huge amount of money to become a Software professional?
Do an online course
@ baabtra.com
We put industry standards to practice. Our structured, activity based courses are so designed
to make a quick, good software professional out of anybody who holds a passion for coding.
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