According to Wikipedia, “a domain is an identification string that defines a realm of administrative autonomy, authority or control within the internet.” In simple terms, Domain name is a readable web address that refers to an IP address and helps users to access websites or other resources in a convenient way. Domain names have extensions at the end of the URL (Uniform Resource Locator). The examples are .com, .net, .org. These are the most commonly used domain name extensions. The most common domain extension is .com with more than 100 million domains registered with it.
Through domain name we can communicate to a DNS (Domain Name System) server, the website we want to visit. Domain helps us to create a business identity as well as credibility. Even if you change your web host (the original place of your website files) your domain name is not changed. Domain name is also helpful in getting good sponsors.
There are many companies which provide domain names like Go Daddy, I page, Hawkhost, Net4mail etc. These companies charge a certain amount for giving you a domain name. Once you purchase a domain name, you are entitled to it usually for one year. After 1 year, you have to renew it. Among these companies Go daddy is the most famous one in India because it charges comparatively less. If you have a good domain name in your mind then you must immediately purchase it because if someone else registers that domain name before you , there are chances that either you will not get that domain name or you will get it at an exorbitant price.
As far as server is concerned Wikipedia defines it as “a program or device that provides functionality for other programs or devices called ‘clients’. In other words, server can be understood as the actual place where your website files are hosted. Server is also known as hosting. Servers are identified by IP address. Even if you don’t have a domain name you can reach the server with the IP address, but a domain name makes any server easily accessible. Server store important business information centrally. Thus it is very important for any organization. Servers need to be maintained regularly. The above mentioned companies which provide domain names also give the service of providing server.