MIS SPPU Unit 1

1. • Ajax: you can navigate through map and as
you navigate page will be loaded.
• HTML is more static. It will first load the map
then you can navigate

2. Domain Name
• Domain names are used to identify one or
more IP addresses. For example, the domain
name microsoft.com represents about a dozen
IP addresses. Domain names are used in URLs
to identify particular Web pages. For example,
in the URL
http://www.pcwebopedia.com/index.html,
the domain name is pcwebopedia.com.

3. • Every domain name has a suffix that indicates
which top level domain (TLD) it belongs to.
There are only a limited number of such
domains. For example:
• gov - Government agencies edu - Educational
institutions org - Organizations (nonprofit) mil
- Military com - commercial business net -
Network organizations ca - Canada th -
Thailand

4. • Because the Internet is based on IP addresses, not
domain names, every Web server requires a Domain
Name System (DNS) server to translate domain names
into IP addresses.
• The only way to register and start using a domain
name is to use the services of a domain name registrar.
• Only a domain name registrar is permitted to access
and modify the master database of domain names
maintained by InterNIC. The master database contains
the documentation on all of the domain names
registered to date.

5. • The registrar you choose will determine the cost for
registering a domain name, but in general expect to
pay a yearly fee. Some registrars will offer discounts if
you register for more than one year, but no registrar
has the authority to sell more than a 10-year
registration contract for any domain name.
• The registrar will ask you to provide some contact and
technical information to have on record. This
information is stored in a registry, which other
computers can access to find information on your site.

6. • The registrar you choose will determine the cost for
registering a domain name, but in general expect to
pay a yearly fee. Some registrars will offer discounts if
you register for more than one year, but no registrar
has the authority to sell more than a 10-year
registration contract for any domain name.
• The registrar will ask you to provide some contact and
technical information to have on record. This
information is stored in a registry, which other
computers can access to find information on your site.