A domain name is a exclusive name that identifies a specific website on the internet. They are easily understandable by the computer but difficult for the human being.
Domain names are relatively cheap to register, though they must be renewed every year or every few years. For Example, on the web a website name is given to an IP (Internet Protocol) which makes it find and simpler to recall, computerhope.com is simpler to remember than 188.8.131.52.
A fully qualified domain name (FQDN) is a domain name that is completely specified with all labels in the hierarchy of the DNS, having no parts omitted. Labels in the Domain Name System are case-insensitive, and may therefore be written in any desired capitalization method, but most commonly domain names are written in lowercase in technical contexts.
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The computer mouse as we know it today was invented and developed by Douglas Engelbart, with the assistance of Bill English, during the 1960’s and was patented on November 17, 1970