Terminal is one of the most important applications for Linux users that provides users access to the shell.
The built-in terminal emulator for Windows is “Command prompt”, while Mac OS X uses “Terminal” as its terminal emulation application which is located in /Application/Utilities. Command line often is the best way to go on Linux systems because most of the tasks work best with the console.
Terminal emulators are mostly used by system administrators because some built-in command line programs are not able to work on their own so third-party terminal emulators are used to talk to the system. It simply replicates the functionality of classic computer terminals. A terminal emulator is basically a terminal application that allows the user to access programs that are originally developed to communicate with some other type of terminal. Both xterm and Terminal are terminal emulators common to UNIX based systems running the X Windows System.
