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It has two main functions: host or network interface identification and location addressing. IP Bandwidth is generally in bits per second (bps) or Bytes per second (Bps), Kilobytes per second
addresses are written and displayed in human-readable notations, such as 172.16.254.1. (Kbps) and Megabytes per second (Mbps). There can be various types of bandwidths, which are
network bandwidth, data bandwidth, or digital bandwidth.
DNS
Domain Name System (DNS) is a naming system for assigning a name to the computers, services,
or other resources connected to the network. This name is known as domain name. For example, TYPES OF NETWORKS
the domain name in the www.yahoo.co.in URL is yahoo.co.in. This domain name is internally Networks can be classified based on their size, complexity and the geographical area covered by
converted into IP address. them. Let us understand these categories in detail.
WEB PAGE PERSONAL AREA NETWORK (PAN)
A single digital page on the World Wide Web (WWW) that contains information and links of PAN refers to the privately owned network. Pan is used to
another pages is called a web page. Web pages are created by using the Hyper Text Markup establish communication amongst the computers within the
Language (HTML). range of 20 to 30 feet. This type of network can be wired or
wireless.
WEBSITE
A website is a collection of web pages which are interlinked to each other. A website may contains
thousands of web pages. LOCAL AREA NETWORK (LAN)
Workstation
LAN is a digital communication system that interconnects a larger
WEB PORTAL Server number of computers and other peripheral devices within a radius of
A website that is specifically designed to provide a single point of access for information is called less than 1 km. This type of network is useful when you want to connect
web portal. Web portals are also known simply as portals. The major difference between a website two different departments in a building (e.g. an office, a building or
and a web portal is that a portal works as a gateway to WWW and provides several services. On a factory). The hardware, as well as software resources, are shared
the other hand, a website may provides only some limited services. through LANs. Your school lab is an example of LAN.
HYPERTEXT
CAMPUS AREA NETWORK (CAN)
The text that has a special feature of connecting one web page to another is called a hypertext.
CAN connects two or more LANs that are limited to Campus
Area
LINK specific geographical areas. For example, college Network
campus, office building, etc. A campus area network is
A link can be defined as a web address that is used to make connectivity between web pages.
larger than LAN since it may span in multiple buildings
HYPERLINK within a specified area.
A hyperlink is simply a part of the Web page that is linked to a URL. A hyperlink can appear as
text, an image, or a navigational tool such as a button or an arrow. When you click on a hyperlink, METROPOLITAN AREA NETWORK (MAN)
you will jump to the URL specified by the hyperlink. Hyperlinked text usually looks different from LAN LAN MAN consists of two or more local area networks or campus
normal text in a Web page. It is often underlined, but can be formatted in a number of ways. area networks together that usually spans several buildings
in the same city or town. It covers an area ranging from 10
BANDWIDTH
to 100 km. For example, the Internet services provided to
The capability of a transmission medium to transmit the maximum amount of data from one users in a city or the ATM network of any area falls under
computer to another over a computer network in a given amount of time is called bandwidth. LAN MAN.
12 Pro (Ver. 5.0)-VIII

