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what is the use of esc in computer
On computer keyboards, the Esc key is a key used to generate the escape character which when sent from the keyboard to a computer, is interpreted by software as stop.
where is the escape key located
The escape key is now generally placed at the top left corner of the keyboard, a convention dating at least to the original IBM PC keyboard.
what was the original name of the escape key
The name of the escape equivalent key on some early Teletype Model 33 keyboards was labeled Alt Mode.
how is the escape key used in games
In most computer games, the escape key is used as a pause button and/or as a way to bring up the in-game menu, usually containing ways to exit the program.

Question: can you tell me the official symbol of the key
Self-contained rewrite: can you tell me the official symbol of the escape key