As a baby boomer engineer, I’ve had the opportunity to live through remarkable growth in the way computational analyses are performed. As this article’s title suggests, over time I learned how to use slide rules, punch cards on main frame computers, hand-held calculators, floppy disks, the Cray super computer, and today’s networked desktop work stations. I still prefer to develop preliminary designs using pencil and paper, but I don’t miss inverting large matrices by hand.


The CDC Executive Committee is pleased to announce the addition of Ian Venegas as Principal and member of the Executive Committee.