The Pc & Networking Know-how program produces graduates ready for positions as technicians and network administrators inside a variety of business and public settings. The primary practical saved-program laptop to offer a regular computing service, EDSAC is constructed at Cambridge University using vacuum tubes and mercury delay traces for memory. The EDSAC project was led by Cambridge professor and director of the Cambridge Computation Laboratory, Maurice Wilkes. Wilkes’ ideas grew out of the Moore Faculty lectures he had attended three years earlier. One main advance in programming was Wilkes’ use of a library of short programs, called subroutines,” stored on punched paper tapes and used for performing widespread repetitive calculations within a beer program.