This page was designed to help our customers to better understand some essential points in the scope of services Total Knowledge offers. Some of these are web services so we think it is necessary to start with the very basics, which are the Internet and World Wide Web.
The Internet is a global network of different devices, primarily
computers, which was invented and created for pure communication purposes. Initially it was
military order for scientists to come up with a communication technology which may survive
severe loses of hardware and physical lines. Existed at that time telephone network could
not serve this purpose, because any break in the middle of the chain makes addressee
unaccessible. Telephone works like a train until tracks are here. So the idea was to use
phone lines the same way as streets and addresses a postman uses: he may bring a letter to
the certain address using any possible route. Basically it should work like this: end user
has a device (computer) with some kind of physical address, a number called IP address
(Internet Protocol address), shortly it is a Internet terminal. A message formed on this
terminal goes through another one and gets coded so it may be sent through telephone line
to a 'router'. Router is another device, which contains 'routing tables'. Using these
tables router determines where the message addressee is and sends it further through one of
available lines. Routers develop a network, so if the first choice line is not available
the message is sent to the second one and so forth. So sooner or later the message will
reach the addressee if any one out of thousands possible routes available.
More about
the Internet read at: The New Hacker's Dictionary (Jargon File), version 4.3.3, 20 SEP 2002.
Generally speaking,
the Jargon File.
is a very interesting and educational reading
WWW or World Wide Web was invented by Dr. Tim Berners-Lee, a
scientist from CERN (the physics laboratory in Geneva, Switzerland) and introduced to the
community in 1991. It was meant to be a web of texts stored on computers joined through the
Internet. So it is important to distinguish between Internet and WWW, which in casual
language mix up. If we extent the analogy for Internet as a communication system like
streets and building numbers the World Wide Web is more like people and businesses, which may
move from one residence to another but stay the same. Initially the idea of the WWW was
supposed to help scientists all over the world to join their research capabilities, to
ease referencing, archiving, search for necessary documents, articles and other materials.
Generally speaking WWW implements a very specific idea, which is 'hypertext', a text which
may be read in all directions. On the Web this very feature works via 'links'. A link is a
small fraction of a text with underlaid, invisible code. The code usually contains a Web
address where the reader would be directed if clicked on the link. The address is said
above IP address, normally represented by some name. So there is another idea incorporated
in World Wide Web: Domain Name System
(DNS). This is a system
of names organized like a library catalog. DNS protocol ties domain names to IP addresses,
which makes using of Internet/WWW human friendly. Initially DNS was invented for the
Internet.
So a single page of a hypertext within the WWW or a web page is an electronic file stored on a server. One
or more web pages linked to each other under certain Web address or URL (Uniform Resource
Location) define a web site. They
say the server, where your site files are stored is your host and respective service is
hosting.
There is more about World Wide Web at: Wikipedia