It was in the late fifties when we ran one of the first application programs on the computer we just had finished at the Technical University of Vienna. We were a group of young people led by Heinz Zemanek, engaged in one of the early university computer projects of those times. The computer became known under the poetic name of 'Mailuefterl' and was the first one in Europe built entirely with transistor technology. Mailuefterl had fifty words of core store, 10.000 words of drum store, paper tape input and typewriter output, and an internal speed of 2.000 words per second [16] [04]. The program in question was written and run for a musician, a composer interested in the set of those twelve-tone sequences that satisfied certain constraints he had established. Mailuefterl, by the way, ran overnight to complete the job, despite clever optimization Peter Lucas, the programmer, had designed into the program. The program was run only once, which makes this an extreme example of a computer usage pattern: one programmer transforming a class of problems out of a certain universe (music) into computer digestible form (the program), solving a particular case by computer, interpreting the results, handing them over to the one interested party (the composer). Mailuefterl was used for a number of applications in similar patterns and also for a number of more durable ones. It was moved to IBM Vienna in 1961, and members of the University group then formed the kernel of a newly established IBM Science Group in Vienna, again under the leadership of Heinz Zemanek. This group of two dozen people developed into the IBM