Q. What is Telnet explain?

TELNET stands for TErminal NETwork. Telnet is both a protocol for connecting a local computer to a remote computer and a TCP/IP application. Telnet is a program which allows an Internet host computer to become a terminal of another host on Internet. Telnet is Internet remote login service. Telnet protocol specifies exactly how a remote login interacts. The standard specifies how to client contacts server and how server encodes output for transmission to the client. To use Telnet service, one should invoke the local application program and specify a remote machine. Local program becomes a client, which forms a connection to a server on the remote computer. Client passes keystrokes and mouse movements to the remote machine and displays output from remote machine on the user's display screen. Telnet provides direct access to several services on Internet. Some of these services are available on your host, however Telnet is especially useful when these services aren't available on your host. For instance, if you want to use graphical interfaces designed by other users then Telnet, allows you to access their hosts and use their new interfaces. In the same way, whenever someone creates a useful service on his host, Telnet enables us to access this valuable information resource. This tools Is specifically useful for accessing public services like library card catalogues, kind of databases available on the machine etc. You can also log into any catalogue service of a library and use it.