Few Star Trek characters are more beloved than Montgomery Scott. With his immense engineering skills and propensity for jury-rigged solutions, he spent much of The Original Series at the heart of the action, and even took command of the Enterprise when Kirk and Spock were busy on some planet's surface. And while it was never used in precisely those terms, the phrase "beam me up Scotty" became one of Star Trek's first tag lines: referring to his uncanny operation of the ship's transporters.
Source：https://www.cbr.com/scotty-star-trek/
