Virtuozzo Containers is a popular virtualization platform, which is used to create virtual servers on physical machines. Every VPS made with it is a standalone software emulation of a website hosting server, so it has its own Operating System. The system resources are also preset, so when you purchase a VPS plan with certain CPU, RAM and disk space quotas, they're always readily available and will not be shared with any other client on the physical server. The Virtuozzo Containers software is really intuitive and easy to use, so even if you don't have much experience, you'll be able to control the entire server using a web-based graphical interface. With a couple of clicks, you'll be able to start/stop/reboot the virtual machine, set firewall rules, install server-side software applications and do various maintenance tasks. You can also monitor how much resources your sites use in real time and this data can inform you if you'll need upgrading while you expand your world-wide web presence. When needed, you'll be able to even reset the whole VPS to its original software installation.