When configuring a virtual machine, the user can specify how many CPU (central processing unit) cores, RAM (random-access memory), and disk space should be devoted to the VM. When the VM is running, it can be "paused." System execution is frozen at that moment in time, and the user can resume using it later.
Supported guest operating systems
Guest operating systems supported by VirtualBox include:
- Windows 10, 8, 7, XP, Vista, 2000, NT, and 98.
- Linux distributions based on Linux kernel 2.4 and newer, including Ubuntu, Debian, OpenSUSE, Mandriva/Mandrake, Fedora, RHEL (Red Hat Enterprise Linux), and Arch Linux.
- Solaris and OpenSolaris.
- macOS X Server Leopard and Snow Leopard.
- OpenBSD and FreeBSD.
- BeOS R5.