Terminal Emulator enables the users to run the commands with the help of real Linux shell. Its environment is similar to the style of the quake video game. Generally the terminal emulator will appear by sliding down from the top of the desktop and hiding in the background with a single keystroke.For example, AltYo and Guake are the perfect for running few commands quickly. Users are recommended to use terminal emulator for multitasking and to increase the productivity.