VirtualBox
VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use.
Q is a free emulator software that runs on Mac OS X, including OS X on PowerPC. Q is Mike Kronenberg's port of the open source and generic processor emulator QEMU.
q is a free emulator software that runs on mac os x, including os x on powerpc. q is mike kronenberg's port of the open source and generic processor emulator qemu. q uses cocoa and other apple technologies, such as core image and core audio, to achieve its emulation. q can be used to run windows, or any other operating system based on the x86 architecture, on the macintosh.
q is available as a universal binary and, as such, can run on intel or powerpc based macintosh systems. however, some target guest architectures are unsupported on lion (due to the removal of rosetta) such as sparc, mips, arm and x86_64 since the softmmus are powerpc only binaries.
unlike qemu, which is a commandline application, q has a native graphical interface for managing and configuring virtual machines.
Discontinued virtualization virtual-machine virtual-machines qemu processor-emulator
VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use.
Free Open Source Windows Linux BSD Mac Solaris
VMware Workstation Pro is a commercial hypervisor that allows users to create and run virtual machines on one computer.
Commercial
VMware Workstation Player builds on the industry leading foundation of Workstation Pro, and delivers a streamlined user interface for creating and running operating systems and applications in a virtual machine.
Free Personal Windows Linux
Parallels Desktop gives Mac users the ability to run Windows, Linux or any other operating system and their critical applications at the same time as Mac OS X on any Intel-powered Mac Pro, iMac, Mac Mini, MacBook or MacBook Pro.
Commercial
Seamlessly run your favorite Windows applications and devices, on any Intel-based Mac.
Commercial Mac OS X
KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.
Free Open Source Linux
VMware vSphere Hypervisor ( based on ESXi ) is a free bare-metal hypervisor that virtualizes servers so you can consolidate your applications on less hardware.
Commercial Windows Linux
portable-virtualbox is a free and open source software tool that lets you run any operating system from a usb stick without separate installation. it unpacks and adjusts the paths and configuration of virtualbox so it will run portably.
Free Open Source Windows
ASG-Remote Desktop is the indispensable tool for administrative access to remote computers.
Commercial Windows
+ Professional-grade Virtualization for PCs: Simultaneously run a wide variety of Windows versions, Linux distributions, web stacks, database configurations, and...
Commercial Windows Linux
FAUmachine is a virtual machine, similar in many respects to VMWare[tm], QEMU or Virtual PC[tm]. What distinguishes FAUmachine from these other virtual machines, are the...
Free Open Source Linux
qemu manager is an easy to use management tool for the open-source qemu emulator. it has a wealth of features for creating, managing...
Free Windows