1900 PERT, the definitive version of the ICL mainframe PERT software systems, was released on the 11th January 1966 by a team that included Raf Dua.
British Tabulator Machines (BTM) one of the forebears of ICL (and Raf) were involved in the earliest days of the PERT development in the USA, providing tabulating machines used to process the punch cards that held the schedule data.
For more on this see: http://www.mosaicprojects.com.au/PM-History.html#HistoryControls
The 1900 PERT code was later used to develop the Micro Planner range of software, the first version being released on the Apple II in 1980 I managed the Australasian part of the Micro Planner business from 1987 to 1999. For more on the history of Micro Planner see: http://www.mosaicprojects.com.au/Company_People_MPI.html#history.
1900 PERT lives on in the current range of Micro Planner software, with Raf still involved as the owner and Managing Director of Micro Planning International: http://www.microplanning.com.au/index.php
I will be presenting a session on the latest version of Micro Planner X-PERT at the Construction CPM conference in New Orleans later this month: http://www.constructioncpm.com/. If you’ve got the time I look forward to seeing you in the Big Easy….