• Running multiple operating systems simultaneously.
• Easier software installations.
• Runs on a large number of 32-bit and 64-bit host operating systems
• Testing and disaster recovery
• Remote machine display
• Guest multiprocessing (SMP)
• Support screen resolutions many times that of a physical screen
• No hardware virtualization required.
• PXE Network boot
• Infrastructure consolidation.
• Guest Additions: shared folders, seamless windows, 3D virtualization.
• Multigeneration branched snapshots.
• USB over RDP
• Clean architecture; unprecedented modularity.
• Extensible RDP authentication.
• here are some pre-built VMs designed for developers and the curious over on the  Oracle Tech Network site. 
• More Inside

• Download And Install
• It's is an open source app
• Know About VirtualBox Guest Additions at OracleDocs
• Visit Official site  😊

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