A dedicated server is a single physical computer engineered to support multiple users, run a large number of different services and applications, and manage, store, send and process data 24-hours a day. A dedicated server allows for all the resources of the physical computer to be "dedicated" to one client and the hardware resources are not shared with any other clients. This is in contrast to shared servers and cloud servers where the resources of the physical computer system are shared amongst many clients.
Bandwidth consumption over the last several years has shifted from a per megabit usage model to a per gigabyte usage model. Bandwidth was traditionally measured in line speed access that included the ability to purchase needed megabits at a given monthly cost. As the shared hosting model developed, the trend towards gigabyte or total bytes transferred, replaced the megabit line speed model so dedicated server providers started offering per gigabyte.
Remember how you felt waking up the first morning after moving into a house that’s all yours, without roommates or parents? Every decision was yours and yours alone to make — from how loud and late the music is played to what type of midnight snack you can chow down on. More responsible adults control which alarm company to trust with your security and safety, along with whether to hire a housekeeping or lawn service or do all domestic maintenance yourself.
The answer to this question largely depends on two factors. Are you new to server technology and not very interested? In this case, Windows is the easiest option to get where you want to go. Do you already have experience with Linux or would you like to familiarize yourself with this operating system? If so, Linux gives you more freedoms to configure your server, and you will be using an operating system that is less vulnerable to attacks from the Internet. Linux is also open source and therefore free.