com! professional from 28.02.2023
Programs and data were punched on punch cards and SAP did not yet exist. When IT consultancy PTA was founded in Mannheim in 1969, the IT world was a very different place. Germany’s oldest IT consultancy has accompanied almost all IT milestones in its more than 50-year history – from the punch card for mainframe computers to the introduction of the Internet and web-based applications through to the cloud. com! professional talks to PTA Managing Director Tim Walleyo about the changes in IT.
