john1993:
linux is quite capable of realtime operation with proper programming. something windows users cant even dream of.
Nope.
At the very least you need a special version of Linux ( eg. RTLinux - Wikipedia ) and even then it's only an approximation.
No pre-emptive operating system can ever be deterministic (ie. it can't allow threads to disable interrupts for arbitrary amounts of time).
john1993:
possible to run executables from ram or ee
Nope.