He built early hardware such as ARPANET interfaces for host # 6 on the network, some of the first bitmapped displays, the ITS time sharing system, Lisp machines ( he was also instrumental in releasing a version of the operating system for the Lisp machine under a BSD license ), the Connection Machine, and parallel symbolic processing computer systems.
42.
An attempt to succeed CTSS was started by LLNL named NLTSS ( New Livermore Time Sharing System ) to embody advanced concepts for operating systems to better integrate communication using a new network protocol named LINCS while also keeping the best features of CTSS . NLTSS followed the development fate of many operating systems and only briefly ran on period Cray hardware of the late 1980s.
43.
After graduation, he worked as a programmer on the CTSS timesharing system and on Project MAC . Disappointed with the direction of MAC, when he heard that Norm Rasmussen, Manager of IBM s Cambridge Scientific Center, intended to build a time sharing system based on IBM s System / 360 and needed someone to lead the project, Creasy left MIT to join IBM.