Saturday 11 August 2012

Basic Internet Terminologies

The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (often called TCP/IP, although not all applications use TCP) to serve billions of users worldwide.

A web browser is a Software application(computer software designed to help the user to perform specific tasks) for retrieving, presenting, and traversing information resources on the World Wide Web or it simply helps us to acess the internet (websites).

A web cache is a mechanism for the temporary storage (caching) of web documents, such as HTML pages and images, to reduce bandwidth usage, server load, and perceived lag. A web cache stores copies of documents passing through it.

Temporary Internet Files is a folder on Windows which holds browser cache ( is a temporary record of your internet activity, including images, sounds, and downloads, that is stored within a file on your computer for a short while)The directory is used by Internet Explorer and other web browsers to cache pages and other multimedia content, such as video and audio files, from websites visited by the user. This allows such websites to load more quickly the next time they are visited. C:\Documents and settings\LocalService\Temp\Temporary Internet Files\Content.IE5.

Each time a user visits a website using Microsoft Internet Explorer, files downloaded with each web page (including html,images etc are saved to the Temporary Internet Files folder, creating a cache of the web page on the local computer's hard disk, or other form of digital data storage. The next time the user visits the cached website, only changed content needs to be downloaded from the Internet; the unchanged data is available in the cache.

Despite the name 'temporary', the cache of a website remains stored on the hard disk until the user manually clears the cache.
The Temporary Internet Files cache can be useful in certain situations. For example, if no Internet connection is available, previously cached websites are still available offline.

A web page or webpage is a document or information resource that is suitable for the World Wide Web and can be accessed through a web browser and displayed on a monitor or mobile device. This information is usually in HTML or XHTML format, and may provide navigation to other web pages via hypertext links. Web pages may be retrieved from a local computer or from a remote web server. The web server may restrict access only to a private network, e.g. a corporate intranet, or it may publish pages on the World Wide Web. Web pages are requested and served from web servers using Hypertext Transfer Protocol (HTTP).


A web search engine is designed to search for information on the World Wide Web. The search results are generally presented in a line of results often referred to as search engine results pages (SERPs). The information may be a specialist in web pages, images, information and other types of files.


URL
Uniform Resource Locator
the lettres typed in between www and .com
This can retrieve web pages from the Internet.

In computer networking and computer science, the words bandwidth, network bandwidth, data bandwidth are terms used to refer to various bit-rate measures, representing the available or consumed data communication resources expressed in bits/second or multiples of it (kilobits/s, megabits/s etc.).