Duane C. Johnson wrote
Rod Speed wrote

http://en.wikipedia.org/wiki/Operating_system

This is right from your reference.

"An operating system (OS) is a computer program that
manages the hardware and software resources of a computer.

And that doesnt happen with engine control
systems in cars, most obviously with the software.

At the foundation of all system software, the OS
performs basic tasks such as controlling and
allocating memory,
prioritizing system requests,
controlling input and output devices,
facilitating networking,
and managing files."

That last doesnt happen with engine control systems either.

What part of most Real Time Operating Systems, "RTOS", is not part of your reference above. Many
complex systems such as some cars use an RTOS.

See above.

A microwave oven doesn't have an OS either.

Possibly not. But certainly will in the future.

Wrong, as always. ALL a microwave needs is microcode, stupid.

AND even if cars did have OSs, and they dont, that is not the reason car
manufacturers make more money on the more expensive cars anyway.