William van den Heuvel William van den Heuvel
Freelance software developer
William van den Heuvel

About

William van den Heuvel is a pioneer in computer software. He wrote his first program in 1968 at a time when computers had no display screens and no hard disks. In those days, punch cards and magnetic tapes were the only media for storing data as well as for the programs themselves. Those were the days when IBM dominated the computer market.  Meanwhile, William has more than 50 years experience in writing and designing computer software.

From 1968 to 2005, William was a System/Software programmer and administrator on IBM Mainframe computers. He wrote primarily highly specialized software in Assembler language.

Since 2005, William specialized on the Microsoft .NET platform programming in C#. More recently, since 2024, William turned to Artificial Intelligence and is meanwhile an expert in writing UI appications based on the API of OpenAI such as Realtime, Images, Responses, Files and Audio.