Answer: Queuing systems
Explanation:
We have the queuing theory which gives us the in depth knowledge of queuing systems which helps us to predict the queue length and the waiting time at the respective nodes in an network. A group of queuing systems together constitute the queuing network. The queuing theory helps to cope with the demand of various services in an queuing network composed of queuing systems.
They act like a filter for info a person receives
You could print one side, flip the paper over and then print what you wanted on the other side.
Having a bachelor degree from a college gives the highest returns on investments. People who go to college usually secure high paying jobs compare to their counterparts who have less education.
The type of college one attends also matter, for instance in USA, the college in the first position, which gives the highest return on investment is Massachusetts Institute of Technology [MIT].