Many things come into and fall out of fashion on a regular basis, some might say that there is a cyclical pattern to these trends. Daisy dukes, tie died, and bell bottoms, have come and gone and come and gone again, but trends in fashion are completely different from trends in technology. Bag Phones, 512k RAM and 800 Mb Hard Drives aren't on the list of things to make a come back.
Centralized computing however, is. In the pioneer days of computing everything was hosted on your organizations main frame. These computing behemoths, with massive processing and storage, were a centralized computer that would rival my 2007 Macbook. Servers hosted terminals all over the infrastructure, allowing users to slice out parts of the power to do their work. As hardware became cheaper it was proliferated out to users more or less indiscriminately. This shift can be seen from the movie TRON to the movie Hackers. As such terminal based computing all but vanished (hat tipped to Gates, Woz, Jobs and the like).
Enter 1998: VM Ware, a virtually (yes, I did) unheard of company selling a great piece of tech. computing with in computing. Virtualizing platforms on anything from workstations to dedicated servers. This paradigm shift is making its way into organizations across the globe. It is becoming common place for organizations to restructure their infrastructure to only hold their computing on server and place Multi Layer Thin Clients (terminals) at each users desk.
The other advantage to centralizing is power cost reduction, both with regard to servers and workstations. If you are able to reduce the power consumption of you server stack by say 10% you also reduce the load on your HVAC reducing over all power consumption in your facilities. If this is implemented infrastructure wide you can have massive gains both in resource management and utilities cost. In the long run everyone likes to save money.
