A Virtual Private Server (VPS) is an independent, virtual partition on a physical server. Think of a server with different "containers" within it.
While you will share some hardware resources with other VPS customers on your server, nothing your neighbours do will affect your container and vice versa. You get many of the benefits of your own dedicated server at a fraction of the cost. On a shared server, you rely on the performance of the platform provided. By choosing VPS, you get to select a configuration best suited for your applications, requirements, and growth.
This is the video for the cheapest vps (https://www.youtube.com/watch?v=y1_E1XXiUe8)