The computer file hosts is
an operating system file that maps hostnames to IP address. It is a plain
text file. Originally a file named HOSTS.TXT was manually maintained and made available via file sharing by Stanford
Research Institute for the Arpanet membership, containing the hostnames and address of hosts as contributed for inclusion by member organizations.
The Domain name system, first described in 1983 and implemented in 1984, automated
the publication process and provided instantaneous and dynamic hostname resolution in the rapidly growing network. In modern operating systems, the hosts file remains an alternative name resolution mechanism, configurable often as part of facilities such as
the Name service switch as either the primary method or as a fallback method.
How can we Edit This file
Host file is a very important file in windows operating system. Some times we need to edit host file for blocking some unwanted website. It is a default system of windows to block website. There is many people don't know how to edit host fine in windows xp, windows 7, windows 8, windows 8.1 and windows 10. For that I made a video tutorial, in which I show you How to Edit Host file in windows.
This video help those people who want to edit windows host file.