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for example which versions of softs are installed there?
Virtuozzo is an Operating System Virtualization solution so a different naming convention was used to differentiate between Virtuozzo and the virtual environments of hardware virtualization. A VPS is just another term for a virtual environment or virtual server.
Virtuozzo 2.6.2
Features and Benefits
Isolated Partitions
Applications do not conflict and users can only see authorized data.
Resource Management
Manage the resources of 30+ parameters. Change parameters in real-time without affecting applications or servers. Flexible resource management allows resource minimums and maximums, and the ability to use unclaimed resources on the server.
Management Tools
Effectively manage many virtual private servers and servers with a single interface across platforms. Automate and simplify many administrative tasks.
Migration
Move between Virtuozzo servers with near-zero downtime. No SAN required.
Templates and Configurations
Provision in minutes, pre-determined server configurations.
Real-Time Monitoring and Alerts
Real-time server performance metrics and alerts enable effective management of servers and applications.
Cloning
Copy a virtual private server with new network parameters and produce a usable copy of the original virtual private server for testing and many other uses.
Backup & Restore
Online backup and restore capability to ensure data protection and availability.
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also what r the differences between plesk, webmin and cpanel servers?
I think this link will help you to find out what is the difference between cPanel, Plesk and Webmin:
http://help.hostony.comVirtuozzo creates isolated, secure virtual private servers (VPSs) or virtual environments on a single physical server enabling better server utilization, ensuring guaranteed resources and preventing applications from conflicting. Each VPS performs and executes exactly like a stand-alone server; VPSs can be rebooted independently and have users, IP addresses, processes, system libraries and configuration files.
Virtual Dedicated Server Technology unlike other shared hosting technologies, provides each Web site with its own, private, isolated space. VDS isolates memory, disk, CPU and network space, guaranteeing your resources from other VDSs or customers. The result is greater reliability and performance and lower costs.
Fundamentally Virtual Dedicated Servers enable each website to operate independently from other websites on the same physical machine. Virtual Dedicated Servers have their own server software that runs inside an isolated file directory and provides autonomy for each website. Security within a VDS environment is unparalleled to that of the virtual hosting environment - any compromise to a VDS only affects that individual VDS. VDS guarantees machine resources that no other customers can use or affect.
Additionally, VDS website owners have full administrative control of their environment and may install additional applications and create classic "Virtual Hosting" accounts contained by your VDS.
Virtual Dedicated Server - the power and control of a dedicated server along with the cost savings of a shared server solution.QUOTE
is there any automatic backups?
Yes, you can configure automatic backups.
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what about the differences between vps and dedicated servers?
is it only about resources
Dedicated Server: In the Web hosting business, a dedicated server refers to the rental and exclusive use of a computer that includes a Web server, related software, and connection to the Internet, housed in the Web hosting company's premises. A dedicated server is usually needed for a Web site (or set of related company sites) that may develop a considerable amount of traffic. The server can usually be configured and operated remotely from the client company. The use of a dedicated server saves the client router, Internet connection, security system, and network administration costs.Virtual private servers have also become popular for their ability to establish sandboxes. For example, a single physical server might have two virtual private servers running: one hosting the production-level (live) website, and a second which houses a copy of it. When updates to crucial parts of software need to be made, they can be tested in the second VPS, allowing for detailed testing to be conducted without requiring several physical servers.
Virtual private servers are also sometimes employed to provide honeypots, allowing a machine to deliberately run software with known security flaws. Because it is possible to quickly deploy multiple virtual private servers on a single computer, honeypots are much easier to deploy, allowing better insight into the world of computer security.
Most applications can be installed within a Virtual Private Server without any problems.