Page 111 - Viva ICSE Computer Studies 8 : E-book

Hypermedia

Hypermedia is a higher version of hypertext that contains links not only to text but also to
other forms of information such as sound, movies and pictures. It enables a user to retrieve
multimedia resources on the Internet.

Uniform Resource Locator (URL)

Uniform Resource Locator (URL) represents the unique address of a web page or a website.
We need to type the URL of a web page in the Address bar of the browser to open it.

IP Address

The 32-bit address is also called IP address or Internet address. It identifi es the location of a
particular computer on the Internet. This system of addressing on the Internet is also called
number addressing system. It is directly understood by the machine. For example, 5.232.59.82
is an example of IP address.

Domain Naming System

Domain name is a readable computer address that identifi es the location of a computer on the
Internet. Domain name system is the conceptual system of naming domains that forms the
hierarchical organisation of the Internet. This system is also called letter addressing system.
The general format of this system is:

name-of-user@name-of-host.subdomain.domain
where,

Name-of-user is the name of the Internet account for logging into the host computer.

Name-of-host is the name of each computer on the Internet.
Subdomain is generally the name of the organisation.

Domain is a group of computers that are administered as a unit in the Internet letter addressing
system, which is easily understood by a person.

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