Career Profiles

Explore profiles of real professionals and students to learn how they got started, what they love about computing, and all about the fascinating work they do.
David Walden

David Walden

Retired Computing Professional

Degree(s):

B.A. (math), San Francisco State College, 1964
Graduate coursework, Computer science, MIT, 1966-1968
“Start reading the computing literature and find a way to begin building hardware or writing software now; don’t wait until you start taking formal computer courses. Practice so you write prose fast and well; it will help your thinking and give you an advantage over all those computer people from whom writing is hard.”
Read more about David Walden (PDF, 121.09 KB)
How I got here... +

I discovered an IBM 1620 computer while studying math, at which I was not very good, and thereafter I spent a lot of time writing programs. Upon graduation, I applied for jobs as a computer programmer and was hired by MIT Lincoln Lab. There, I evolved from a novice to a journeyman computer programmer under the mentorship of Will Crowther, the author of the first computer adventure game. I then moved to BBN where I had to good fortune to become part of the small team that developed the packet-switching technology for the ARPANET, the precursor of the Internet.
Read Dave’s computing memoir for the IEEE History Center Global History Network:
http://walden-family.com/cshc/archive/pubs/walden-memoir.pdf

Why I love my job +

As I became an experienced computer programmer and learned about designing overall computer systems, my career evolved step by step: programmer, software project leader, department leader, assistant division director, and general manager. In these latter jobs I was involved in sales and marketing as well as management. An important lesson was that I couldn’t simultaneously be a manager and remain a top rank technical person. However, I could accomplish bigger things as a manager, and was able to see a variety of business situations: contract R&D, product start-up, growth system business, and business shut down. It was interesting and exciting.

Life outside of work +

I am a serial hobbiest, spending vast amounts of time on whatever hobby I have been interested in. Over the years these activities have included contract bridge, musical theater, postal chess, juggling, sailing, playing Irish traditional music, and now (in retirement) writing, editing, and self-publishing about computing history and business management. Curiously, the most recent area of interest involves lots of computing (website development, typesetting, publishing workflow, etc.). In addition I read a lot of fiction and try to see at least one movie a week: http://walden-family.com/public/movie-index.htm

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Gordon Bell
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Dr. Sue Black
Dr. Sue Black

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Jean Sammet

Jean E. Sammet was one of the first developers and researchers in programming languages. During the 1950’s - 1960’s she supervised the first scientific programming group for Sperry Gyroscope Co. and served as a key member of the original COBOL (COmmon Business-Oriented Language) committee at Sylvania Electric Products. She also taught one of the first graduate programming courses in the country at Adelphi College. After joining IBM in 1961, she developed and directed the first FORMAC (FORmula MAnipulation Compiler). This was the first widely used general language and system for manipulating nonnumeric algebraic expressions. In 1979 she began handling Ada activities for IBM’s Federal Systems Division. Ada is a structured, object-oriented high-level computer programming language, designed for large, long-lived applications, where reliability and efficiency are paramount. Jean has a B.A. from Mount Holyoke College and an M.A. from the University of Illinois, both in Mathematics. She received an honorary D.Sc. from Mount Holyoke (1978).

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Mark Dean

If you have ever used a PC with a color display you have been acquainted with the work of Mark Dean. After achieving a Bachelor’s degree in electrical engineering from the University of Tennessee, Dean began his career at IBM. Dean served as the chief engineer on the team that developed the first IBM PC, for which he currently holds one third of the patents. With colleague Dennis Moeller, he developed the Industry Standard Architecture (ISA) systems bus, which enabled peripheral devices such as printers, keyboards, and modems to be directly connected to computers, making them both affordable and practical. He also developed the Color Graphics Adapter which allowed for color display on the PC. Most recently, Dean spearheaded the team that developed the one-gigahertz processor chip. Dean went on to obtain a MSEE from Florida Atlantic University and a Ph.D. in electrical engineering from Stanford University. He is a member of the National Academy of Engineering, has been inducted into the National Inventors Hall of Fame, and is the first African-American IBM Fellow.

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