Servers are generally computers that provide resources to multiple people, and often have no person "sitting at the keyboard." You see, desktop computers are primarily used by a single person at a time, and much of the system's power is used to provide that one user with fast and pretty desktop performance. In contrast, a server is optimized to serve it's primary resources to multiple users at the same time, and spend very little power on it's own desktop, since there is usually nobody "at the keyboard."

Servers can serve all kinds of things, such as files, web pages, print jobs, email, etc. Depending on what resources you need and how heavy they are, you may need several computers configured as servers, or only one. If you have any at all, they will benefit from proactive administration and maintenance. A server administrator is like having somebody "at the keyboard" who monitors the processes, checks logs, watches for security breaches, applies software updates, handles system alerts, and generally makes sure things continue to run smoothly by fixing small issues before they become big problems. I use remote administration and can manage your servers as part of my daily routine without travel time or disrupting your business.