Although they can do a tremendous amount of work, servers are pretty basic with far less actual parts to them than most people think. Previously called a Mainframe, the typical server does its work diligently and consistently, usually situated in a cool and dust-free location which may or may not be at the place of business for which it is employed.
Changes in technology have made it difficult to work without a computer. When you use a computer you can complete even the most complicated task without much difficulty. Most people consider a computer an essential part of their life, and it has made their life simple and easy.
Newsgroup hierarchies make it easy to make sense out of all the different options on Usenet. They allow you to narrow down the subject of the newsgroup to the extent that it is generally pretty obvious what posts would be relevant to the topic at hand and which would not.