Heinz Zemanek led a group of Austrian students in the 1950s who designed and built the Mailüfterl, one of the first fully transistorized computers in continental Europe. This short portrait traces his career through archival photographs and footage, marking his contribution to early computing at a time when vacuum tubes still dominated machine design. It sketches the technical ambition behind the Mailüfterl project, built largely from parts the team sourced and assembled themselves, and situates Zemanek within the small international circle of engineers pushing transistor technology into practical computing. Made as a tribute after his death at 94, the film functions as a compact biographical record rather than a deep technical history, aimed at preserving his place in the story of computing for viewers who might otherwise never hear his name. It is a brief but concrete look at one of the lesser-known figures whose work helped shape the machines that followed.