Suppose you are submitting a paper to a conference, your draft paper has been submitted, and it will take approximately four month in order for the reviews to come back, the acceptance/rejection will be given and if accepted you will be told to submit the final draft.
Can an insider shed some lights into what exactly happens in between these four months for a typical conference in technical fields such as computer science or engineering?
For instance, how many people are usually on the peer-review committee? Are these usually professors or PhD students? How do reviewers inform each other about their opinions and comments? How long does it actually take (during the span of the review period) to evaluate a single paper? Finally, how are decisions made by the reviewers evaluated at the end? What if there is the same number of people in favor of rejecting a paper versus accepting one?