This is how I cook it!
I don't know really how to start this one. So, i'll start with the underlying base of this discussion
Multitasking
Human multitasking or multitasking is the performance by an individual of more than one task at the same time. The term is derived from computer multitasking. An example of multitasking is listening to a radio interview while typing an email. Multitasking can result in time wasted due to human context switching and apparently causing more errors due to insufficient attention.
(From wikipedia :- http://en.wikipedia.org/wiki/Human_multitasking)
Ever since i came across this term as part of my computer science education, i was aware of the existence or non-existence of it around me. I 'knew' that if I could squeeze in more tasks per unit of time, I'd probably be fairing better! I looked down upon people who could only stare at their chat screens, while the other numerous modes of input built into a human body waited for that process to return the thread of control back.
Priority based preemption is now self-adjusting, its not the best yet, it has its own set of parameters unknown to the conscious mind. If I have ever been cranky towards your words or worst still put a deaf ear against your face, u should know where that is coming from - you are probably stuck at the end of a long queue of processes that need attention.
And sometimes, just to avoid all the guilt of having kept you waiting too long, I refrain .. to the time of the day when I can give you all of me you ask for ..