1. The Internet is a worldwide collection ofcomputer networks
cooperating with eachother to exchange data using a commonsoftware
standard.
2. Before the globally spread internetworking, communication
networks had limited communications between the stations on the
network.-Advanced Research Projects Agency Network(ARPANET) - a
nationwide computer network in the USA. (1969) - ARPANET became the
technical core of what would become the internet. -X.25 protocols
-Unix-to-unix copy(UUCP) -FidoNet -CYCLADES..and a few more
3. Internet Protocol Suite(TCP/IP), on 1982, was standardized
to unify the separated networks. The term "internet" was adopted in
the first RFC published on the TCP protocol. In general, an
internet was any network using TCP/IP.
4. During the next two decades, the network thatevolved was
used primarily by academic institutions,scientists and the
government for research andcommunications. The appeal of the
Internet to thesebodies was obvious, as it allowed disparate
institutions toconnect to each others computing systems and
databases. The nature of the Internet changed abruptly in 1992,when
the U.S. government began pulling out of networkmanagement, and
commercial entities offered Internetaccess to the general public
for the first time. This changein focus marked the beginning of the
Internetsastonishing expansion.
5. Email is shorthand term meaningElectronic Mail. Email much
the same as aletter, only that it is exchanged in a differentway.
Computers use the TCP/IP protocol suiteto send email messages in
the form of packets.The first thing you need to send and
receiveemails is an email address. When you createan account with a
Internet Service Provider youare usually given an email address to
send fromand receive emails.
6. Email AddressesAn e-mail address typically has two main
parts: Ex. [email protected] -The first part is your
username. You set up the username with your Internet provider or
e-mail service. It might be any name of your choice. Dividing the
two, is the @ (at) symbol. The second part, is the name of the
computer that handles your mail. The computer is also called a
server. Your Internet Service Provider (ISP) or e-mail service has
a particular name for their server - like aol.com for America
Online or yahoo.com for those who go through the Yahoo
service.
7. A system of Internet servers that support specially
formatted documents. The documentsare formatted in a markup
languagecalled HTML (Hyper-Text Markup Language)that supports links
to other documents, as wellas graphics, audio, and video files.
This meansyou can jump from one document to anothersimply by
clicking on hot spots. Not all Internetservers are part of the
World Wide Web.
8. The Web is just one of the ways thatinformation can be
disseminated over theInternet. The Internet, not the Web, is
alsoused for e-mail, which relieson SMTP, Usenet news groups,
instantmessaging and FTP. So the Web is just aportion of the
Internet, albeit a largeportion, but the two terms are
notsynonymous and should not be confused.
9. There are several applications called Web browsers that make
it easy to access the World Wide Web.
10. The internet allows the users to easilyconnect to other
computers all over theworld anytime and anywhere, which
makeseverything easier. With this, work can be done at home orany
place having an internet connection.
11. A virtual private network (VPN) is aprivate computer
network that interconnectsremote (and often geographically
separated)networks through primarily publiccommunication
infrastructures such as theInternet. VPNs provide securitythrough
tunneling protocols and securityprocedures such as encryption.
Meaning, onecan have complete access of all theirfiles/data even if
they are away from theoffice.
12. The easy communication anddata/information transferring
over theinternet via internet chat has madecollaborative work for
groupseasier, cheaper, and sometimes free. It alsoallows the
formation of such groups to beeasier.
13. Version control systems allows a teamof developers (which
could be distributedgeographically) to be working on the sameset of
files at once without interrupting eachothers work.
14. File sharing, is of course, a lot easier because ofthe
internet. Any computer file can be e-mailed as anattachment,
uploaded to a website for easydownloading ,or be put into a shared
location thatcan be easily accessed by colleagues. For large
numbers of downloading, a mirror sitecan be used. It is an exact
copy of another Internetsite. Mirror sites are most commonly used
toprovide multiple sources of the same information,and are of
particular value as a way of providingreliable access to large
downloads.
15. Peer-to-peer file sharing Users can use software that
connects into a peer-to-peer network to search forshared files on
the computers of other users(i.e. peers) connected to the
network.Typically, large files are broken down intosmaller chunks,
which may be obtained frommultiple peers and then reassembled by
thedownloader.
16. This function of the internet affects theproduction, sale,
and distribution of anyproduct , like softwareproducts, music,
videos, films, photography,etc., globally.
17. Streaming or media streaming is atechnique for transferring
data so that it can beprocessed as a steady and continuous
stream.Streaming technologies are becomingincreasingly important
with the growth of theInternet because most users do not have
fastenough access to downloadlarge multimedia files quickly.
Withstreaming, the client browser or plug-in canstart displaying
the data before the entire filehas been transmitted.
18. For streaming to work, the client sidereceiving the data
must be able to collect thedata and send it as a steady stream to
theapplication that is processing the data andconverting it to
sound or pictures. This meansthat if the streaming client receives
the datamore quickly than required, it needs to save theexcess data
in a buffer. If the data doesnt comequickly enough, however, the
presentation ofthe data will not be smooth.
19. YouTube is the leading free streaming site.
20. Live streaming, delivering live over theInternet, involves
a camera for the media, anencoder to digitize the content, a
mediapublisher, and a content delivery network todistribute and
deliver the content.
21. VoIP stands for Voice-over InternetProtocol, a category of
hardware andsoftware that enables people to usethe Internet as the
transmission medium fortelephone calls by sending voice data
inpackets using IP rather than by traditionalcircuit transmissions
of the PSTN.
22. One advantage of VoIP is that thetelephone calls over the
Internet do notincur a surcharge beyond what the user ispaying for
Internet access, much in the sameway that the user doesnt pay for
sendingindividual e-mails over the Internet, whichmakes it a
competitive alternative totraditional phone services.
23. VoIP is commonly used in instantmessaging, usually in the
form of video callsnowadays VoIP has also become a popular form
ofgaming communication.