cs 432 web technology

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Nov 5, 2013 (3 years and 10 months ago)

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CS 432 WEB TECHNOLOGY


11. what is an internet?


Internet is a system that lets computers all over the world to communication
with each other .The internet is a network of network that connects computers all
over the world.



12. “Internet is a business to
ol” Justify it.



The increasingly global business climate and the great extent to which big
companies rely computers, the Internet looks like a great vehicle for national and
international business communication is certainly cheaper and more flexible than

building a private, global computer network from scratch. Nowadays several
organizations are running their business through Internet for various purposes.


13. What is meant web page?



A web page is a HTML document that is stored in a web server and that

has an URL so that it can be accessed via the web.



For example: www.annauniv.com is the website name and it
consists of several web page like Index.html, syllabus.html etc.....


14. Mention different types of websites



There are different types of webs
ites. Some of them are:



Portal



Web Guides



Search Engines

Portal: portal is a website that provides numerous free services that enhance the
web experience.

Web Guides: It is a website which is a system of categories and subcategories
that organize links to
the web pages.

Search Engines: They are widely used websites to find out any specific
information.

15. Write the basic structure of HTML?


<HTML>

<HEAD>

<TITLE>< PUT YOUR HOME PAGE NAME>

</TITLE>

</HEAD>

<BODY>

<PUT YOUR HOME PAGE DESIGN HERE>

</BODY>

</HT
ML>

16. What is meant by tag?


HTML tag is a signal to a browser that it should do something other than
just throw text upon the screen in the default font. Tags are instruction that is
embedded directly into the information text of your document.

17. What

is COOKIES?

In va Script cookies are a mechanism for storing persistence data on the client in
the file called cookies.txt. Because hypertext transport protocol (http) is a stateless
protocol, cookies provide a way to maintain information between client r
equests.

18. Diffentiate Intranet and LAN



LAN can add
-

Internet protocol and service to support the intranet. The LAN
protocol like NetBEUL, IPX/SPX supports file sharing printer sharing on a LAN but does
not support web browsers and web servers. Hence T
CP/IP has to be installed in the LAN.
Both LAN and TCP/IP can run simultaneously.


AN Intranet also can run on WAN, the network what large organizations use to
connect geographically separated locations.

19. What is the use of this operator?



The This key
word is use to return the current object .Form returns the current
instance of the form object, which is the form object itself.

20. Mention the use of new operator .



The new operator can use to create an instance of a user
-
defined object type of
one of
the built
-
in object type Array, Boolean, Date, Function, Math, Number or String.

For example:


objectName=new objectType(param1 [

param2] ………[

paramn] )


21. What is URL?



URL is also some times called as Universal Resource Locator.




Http://www.google.com/index.html



Http
-

specifies the protocol

WWW
-
stands for information retrieval purpose

.com
-
it specifies the domain name


22. Expand ISDN.Give it uses.

SDN is Integrated Services Digital Network or cab
le modem or dial
-
up
telephone modem.ISDN provide very fast connection compare to dial
-
up

Modems (about 40 to 100 times faster). It receives files from web server to local
server.

23. What is meant by Container tag?


A tag is said to be container tag if it,

along with a companion tag sides
something. For example <I>,<img>,<hr>

24. What is the tag in HTML form?




The tags are:

<Form>

<Input>

<Option>

<Select>

<Textarea>




25. What is meant by web browser?

A web browser is a software tool that computers use

to communicate with servers
on the Internet Web Browsers enable to download and display the web pages that users
requests.



Explain the basic principles of internet




The Internet is a system that lets computers all over the world to
communication with
each other .The internet is a network of network that
connects computers all over the world.


The computers that constitute the internet come in just about every size,
shape and type in use. They are spread all over the world in every continent,
including
Antarctica. According to Society, a volunteer organization, the number
of computers on the Internet is almost doubling every year.


What is a internet?


It’s a Network




The computers on the internet can talk to one another are
networked; they are conne
cted in some way so that they can exchange
information with one another electronically. On the Internet the connections take
many different forms. Some computers are directly connected to others with wire
or fiber
-
optic cables.


It’s a Loose Organization



Although most people think or talk about the Internet as if it were
some giant company or club No single entity or organization controls it. The
computers are on it are controlled by their owners. Nobody controls the Internet.
It’s like a neighborhood whe
re people communicate each other


It’s a relaxing phase


Internet resources enable users to exchange information in an
open public way. These resources provide a forum where users can write
and post messages for others users and where they can read message
s
posted by others.


It’s a business tool

The increasingly global business climate and the great extent to
which big companies rely computers, the Internet looks like a great vehicle
for national and international business communication is certainly cheape
r
and more flexible than building a private, global computer network from
scratch. Nowadays several organizations are running their business
through Internet for various purposes

It’s a Mailbox


The most
-
used Internet Facility is electronic mail also as e
-
mail. To send a message to an Internet user, anywhere in the world all the
sender has to know is the address of the recipient. The sender types up a
message in hid or favorite word processing or e
-
mail software program,
hops to the internet, types in the a
ddress and send the message on its
way.

It’s a Information pool


Internet is a pool of information. Whatever the information
the users in need it can be easily locate and utilized from the internet.

It’s a Living thing


The Internet is a living thing, grow
ing its own way, at its own
pace, perhaps according to any earthly plan.

Origin of Internet


In 1960’s the Advanced Research project Agency(ARPA) of US Defense
department funded a project to connect university to computer scientists and
engineers via their

computers and telephone lines.


After that in late1980’s the barrier of NSFNET for using Military and
Research people has been broken away.


In 1989,the WWW has emerged for information services and 1990’s the
combination of email, the web and online chat
booster the use of internet service
across National and international prominence.


IP Address



Each host computer on the internet has a unique number and it is
called as internet protocol Address


It is in the format of





a.b.c.d



Where the values

of a ,b ,c and d will be in the range of 0 to 255.




Internet Service Provider (ISP)



An ISP is an organization that provides individuals and other companies
access to the Internet and other related services such as websites building and
virtual hosting
.


ISDN is Integrated Services Digital Network or cable modem or dial
-
up
telephone modem.ISDN provide very fast connection compare to dial=up
modems (about 40 to 100 times faster).Their cost is also less.


To use PPP (Point
-
to
-
Point) dial up account, you n
eed a compatible
program such as windows Dialup networking program.

Uniform Resource Locator (URL)


URL is also some times called as Universal Resource Locator .




Http://www.google.com/index.html



Http
-

specifies the protocol

WWW
-
stands for the we are using for information retrieval purpose

.com
-
it specifies the domain name.