Difference between server and client

Question

What is the difference between server and client? What difference does it make for some software installations?

For example, I\'ve checked on how to download and install

Answer 1

A server is a program, or machine, that waits for incoming requests.

A client is a program, or machine, that sends requests to servers.

Wikipedia: Server (computing), Client (computing)

For cvs; Are you setting up your own project, in which case you will need to set up the cvs server as well as a client to connect to said server. Or are you connecting to an existing project, in which case you need the client.