Niklaus Wirth, winner of the Association for Computing Machinery's A.M. Turing Award, discusses the implementation and spread of Pascal, focusing on its use of a virtual machine to improve efficiency and portability. This clip is taken from an interview conducted with Wirth by Elena Trichina for the ACM on 13 March, 2018 in Zürich, Switzerland. Video of the full interview is available as part of Wirth’s ACM profile at https://amturing.acm.org/award_winner....