The Internet
Chapter
VI?
The Internet is a worldwide collection of
interconnected networks.
Just how big the internet?
The Net, the internet’s nick...
Some Historical Perspective of the
Internet
A small group of computer scientist on both coasts of the
United States were ...
By 1971, the ARPANET included more than 20
sites including Harvard.
By 1981, the ARPANET linked 200 sites.
ARPANET even...
The Transmission Control Protocol /
Internet Protocol (TCP/IP) are the
communications protocol that permits data
transmiss...
The Transmission Control Protocol (TCP) sets the
rules for the packaging of information into packets.
The Internet Protoco...
♣ The Uniform Resource Locator (URL) is the
internet equivalent of an address.
♣ It gives those who make information avail...
http://www.rtu.edu.ph/rtu.php?cid=7/Careers6.html
specifies access method.
This indicator tells your client software to ex...
http://www.rtu.edu.ph/rtu.php?cid=7/Careers6.html
Domain Name
 The Domain Name, which is a unique name that
identifies an...
Domain Description
com Commercial
Organizations
edu Educational
Organizations
gov Government
Organizations
mil Military
Or...
http://www.rtu.edu.ph/rtu.php?cid=7/Careers6.html
Directory
o The Directory contains the resources for a particular topic....
o The HTML (Hypertext Markup Language) is the
language used to compose and format most you see
when cruising the net.
Brow...
• An internal portals is always a good place to start.
These portal sites divide the wealth of resources on the
internet i...
Search engine
Search Engine provides a resource discovery tool
to help you to find the information or service you
need.
The rules by whi...
Read the search rules.
If you don’t get the results with one search
engine, try another.
The results of the search are sel...
WWW: World Wide Web
 World Wide Web affectionately called the Web, is an
internet system that permits linking of multimed...
Attributes set Web servers apart from other
internet servers
User-friendly
Multimedia Documents
Hyperlinks
Interactive
Fra...
The File Transfer Protocol (FTP) allows you
to download and upload files on the internet.
FTPing is a popular activity on ...
Gopherspace is the home of thousands of
gopher servers throughout the world.
The Gopher system, which predates the
World W...
Gopherspace was
released by Mark
McCahill, together with
his associates Farhad
Anklesaria, Paul
Lindner, Daniel Torrey,
an...
Telnet:
Remote
Login
Telnet refers to a class of internet
application programs that lets you log
onto a remote computer us...
TELNET :
REMOTE
LOGIN
hi hello Communicating with
People: E-
mail, Newsgroup
and Chat
Electronic mail, most
commonly referred to
as email or e-mail since 1993,
is a method of exchanging
digital messages from ...
The attached file is routed to the
recipient’s e-mail server computer
along with the server.
A news group is the cyberspace
version of a bulletin board.
USENET is a worldwide
network of servers that can be
accessed ...
Newsgroups
The Internet Relay Chat (IRC) protocol allows user
to join and participate in group chat sessions.
A chat session is when ...
INTERNET RELAY CHAT
E-commerce is simply conducting business online
and that , of course, means the electronic transfer
of money of plenty of ...
Firewall is software that is designed to
restrict access to an organizations network
or its intranet. The firewalls screen...
the internet
the internet
the internet
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  • the internet

    1. 1. The Internet Chapter VI?
    2. 2. The Internet is a worldwide collection of interconnected networks. Just how big the internet? The Net, the internet’s nickname, links over a million networks with even more internet host server computers in every country in the world. What is the Internet?
    3. 3. Some Historical Perspective of the Internet A small group of computer scientist on both coasts of the United States were busy creating a national network that would enable the scientific community to share ideas over communication links. The Department of Defense’s Advance Research Project Agency (ARPA) sponsored the project, named, ARPANET, to unite a community of geographically dispersed scientists by technology. The first official demonstration linked UCLA with the Stanford University, both in California but, this historic event had no records ,photographs and reports.
    4. 4. By 1971, the ARPANET included more than 20 sites including Harvard. By 1981, the ARPANET linked 200 sites. ARPANET eventually lost its reason to exist as other special-interest networks took its place. In 1990, ARPANET was eliminated, leaving behind a legacy of networks that evolved into the internet.
    5. 5. The Transmission Control Protocol / Internet Protocol (TCP/IP) are the communications protocol that permits data transmission over the internet. Communications over the Net are built around this two-layered protocol. Protocol is a set of rules computers use to talk to each other.
    6. 6. The Transmission Control Protocol (TCP) sets the rules for the packaging of information into packets. The Internet Protocol (IP) handles the address, such that each packet is routed to its proper destination.
    7. 7. ♣ The Uniform Resource Locator (URL) is the internet equivalent of an address. ♣ It gives those who make information available over the internet a standard way to designate where internet elements, such as server sites, documents, files, newsgroups, and so on can be found. Ex. http://www.rtu.edu.ph/rtu.php?cid=7/Careers6.html URL: The Internet Address
    8. 8. http://www.rtu.edu.ph/rtu.php?cid=7/Careers6.html specifies access method. This indicator tells your client software to expect an http (hyperText Transport Protocol) file. http is the primary access method for interacting the internet. Access Method
    9. 9. http://www.rtu.edu.ph/rtu.php?cid=7/Careers6.html Domain Name  The Domain Name, which is a unique name that identifies an internet host site, will always have at least two parts, separated by dots (periods).  The part to the right of the domain name is the most general and the part on the left is the most specific. Domain Name
    10. 10. Domain Description com Commercial Organizations edu Educational Organizations gov Government Organizations mil Military Organizations net Network service providers or network resources org Non-profit organizations Common country codes Domain Description au Australia dk Denmark fr France jp Japan Major Domain Name Types
    11. 11. http://www.rtu.edu.ph/rtu.php?cid=7/Careers6.html Directory o The Directory contains the resources for a particular topic. Filename http://www.rtu.edu.ph/rtu.php?cid=7/Careers6.html Filename o The specific filename of the file that is retrieved from the server and sent to your pc over the internet. Directory
    12. 12. o The HTML (Hypertext Markup Language) is the language used to compose and format most you see when cruising the net. Browsing is when browsers poke around the internet with no particular destination in mind. A ll the popular portals on the Net offer a menu tree of categories, these includes Yahoo, Facebook, Multiply, Google and others Browsing the Net
    13. 13. • An internal portals is always a good place to start. These portal sites divide the wealth of resources on the internet into about a dozen major categories (for ex. Arts, business, computers, education, entertainment, h ealth and so on) • You may navigate through several levels of categories before reaching the pages you want. • Many pages have banner ads that entice us to click on them and travel to totally unrelated site.
    14. 14. Search engine
    15. 15. Search Engine provides a resource discovery tool to help you to find the information or service you need. The rules by which you enter the keywords and phrases vary slightly between the search engines. Using Search Engine to Search the Net
    16. 16. Read the search rules. If you don’t get the results with one search engine, try another. The results of the search are seldom exhausted . Choose search words carefully. Be persistent.
    17. 17. WWW: World Wide Web  World Wide Web affectionately called the Web, is an internet system that permits linking of multimedia documents among servers on the internet  By establishing a linked relationship between Web documents, related information becomes easily accessible  These linked relationships are completely independent of physical location. Internet Applications: The Web, FTP and More
    18. 18. Attributes set Web servers apart from other internet servers User-friendly Multimedia Documents Hyperlinks Interactive Frames
    19. 19. The File Transfer Protocol (FTP) allows you to download and upload files on the internet. FTPing is a popular activity on the net. You can download exciting games, colorful art, music from up and coming artists and applications programs basically anything that can be stored digitally. Many FTP sites invite users to contribute (upload) files of their own. FTP: Downloads for the asking
    20. 20. Gopherspace is the home of thousands of gopher servers throughout the world. The Gopher system, which predates the World Wide Web, was developed at the University of Minnesota. It is designed for distributing, searching, and retrieving documents over the Internet Gopherspace: Go-for Information
    21. 21. Gopherspace was released by Mark McCahill, together with his associates Farhad Anklesaria, Paul Lindner, Daniel Torrey, and Bob Alberti
    22. 22. Telnet: Remote Login Telnet refers to a class of internet application programs that lets you log onto a remote computer using the Telnet communication protocol. Telnet is a terminal emulation protocol that allows you to work from a PC as if it were a terminal linked directly to a host computer. Once online to one of these sites, you can run a normal interactive session as if you were sitting at an on-site terminal.
    23. 23. TELNET : REMOTE LOGIN
    24. 24. hi hello Communicating with People: E- mail, Newsgroup and Chat
    25. 25. Electronic mail, most commonly referred to as email or e-mail since 1993, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. E-mail sent to a particular person can be “opened” and read by that person. E-mail on the Net
    26. 26. The attached file is routed to the recipient’s e-mail server computer along with the server.
    27. 27. A news group is the cyberspace version of a bulletin board. USENET is a worldwide network of servers that can be accessed over the internet. “Newsgroups” is misnomer in that you seldom find any real news , they are mostly electronic discussion groups. Newsgroup : Electronic Bulletin Boards
    28. 28. Newsgroups
    29. 29. The Internet Relay Chat (IRC) protocol allows user to join and participate in group chat sessions. A chat session is when two or more internet users carry on a typed, real-time, online conversation. Chatting is a favorite past time of millions of cybernauts. INTERNET RELAY CHAT: CHIT-CHAT
    30. 30. INTERNET RELAY CHAT
    31. 31. E-commerce is simply conducting business online and that , of course, means the electronic transfer of money of plenty of opportunity for fraud and theft. Issues on the Net
    32. 32. Firewall is software that is designed to restrict access to an organizations network or its intranet. The firewalls screens electronic traffic in both directions so that organizational security is maintained. Spam is unsolicited junk e-mail , mostly advertising for commercial products or services. Spammers or those who send spam unsuspecting people with political messages.
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