It does but for the 90's/00's a computer typically meant Windows.

The ops staff would all be 'Microsoft Certified Engineers', the project managers had heard of Microsoft FuD about open source and every graduate would have been taught programming via Visual Studio.

Then you have regulatory hurdles, for example in 2010 I was working on an 'embedded' platform on a first generation Intel Atom platform. Due to power constraints I suggested we use Linux. It worked brilliantly.

Government regulations required anti virus from an approved list and an OS that had been accredited by a specific body.

The only accredited OS's were Windows and the approved Anti Viruses only supported Windows. Which is how I got to spend 3 months learning how to cut XP embedded down to nothing.