Browser
A browser is an application
program that provides a way to look at and interact with all the information on
the World Wide Web. The word "browser" seems to have originated prior
to the Web as a generic term for user interfaces that let you browse (navigate
through and read) text files online. By the time the first Web browser with a
graphical user interface was generally available (Mosaic, in 1993), the term
seemed to apply to Web content, too. Technically, a Web browser is a client
program that uses the Hypertext Transfer Protocol (HTTP) to make requests of
Web servers throughout the Internet on behalf of the browser user.
URL
URL (Uniform Resource Locator,
previously Universal Resource Locator) – pronounced YU-AHR-EHL or, in some
quarters, UHRL - is the address of a file (resource) accessible on the
Internet. The type of file or resource depends on the Internet application
protocol. Using the World Wide Web's protocol, the Hypertext Transfer
Protocol (HTTP), the resource can
be an HTML page (like the one you're reading), an image file, or any other file
supported by HTTP. The URL contains the name of the protocol required to access
the resource, a domain name that identifies a specific computer on the
Internet, and a pathname (hierarchical description of a file location) on the
computer.
On the Web (which uses the
Hypertext Transfer Protocol), an example of a URL is: http://www.ietf.org/rfc/rfc2396.txt which describes
a Web page to be accessed with an HTTP (Web browser) application that is
located on a computer named www.ietf.org. The pathname for the specific file in
that computer is /rfc/rfc2396.txt. An HTTP URL can be for any Web page, not
just a home page, or any individual file.
Examples:
What is a Web
site?
A Web site is a related
collection of World Wide Web (WWW) files that includes a beginning file called
a home page. A company or an individual tells you how to get to their Web site
by giving you the address of their home page. From the home page, you can get
to all the other pages on their site. For example, the Web site for IBM has the
home page address of http://www.ibm.com. IBM's home page address leads to
thousands of pages but a web site can also be just of few pages.
What is Home
Page of a web site?
1) For a Web user, the home page
is the first Web page that is displayed after starting a Web browser like
Netscape's Navigator or Microsoft's Internet Explorer. The browser is usually
preset so that the home page is the first page of the browser manufacturer.
However, you can set it to open to any Web site. For example, you can specify
that "http://www.yahoo.com" or "http://whatis.com" be your
home page. You can also specify that there be no home page (a blank space will
be displayed) in which case you choose the first page from your bookmark list
or enter a Web address.
2) For a Web site developer, a
home page is the first page presented when a user selects a site or presence on
the World Wide Web. The usual address for a Web site is the home page address,
although you can enter the address (Uniform Resource Locator) of any page and
have that page sent to you.
No comments:
Post a Comment