answers: Windows 8
context: and became the first version of IBM's CP/CMS operating system. CP-40 ran on a S/360-40 that was modified at the IBM Cambridge Scientific Center to support Dynamic Address Translation, a key feature that allowed virtualization. Prior to this time, computer hardware had only been virtualized enough to allow multiple user applications to run concurrently (see CTSS and IBM M44/44X). With CP-40, the hardware's "supervisor state" was virtualized as well, allowing multiple operating systems to run concurrently in separate virtual machine contexts. Programmers soon implemented CP-40 (as CP-67) for the IBM System/360-67, the first production computer system capable of full virtualization. </s> the x86-64 variants of Standard, Enterprise and Datacenter editions of Windows Server 2008 and later, as well as the Pro, Enterprise and Education editions of Windows 8 and later. On Windows Server, it can be installed regardless of whether the installation is a full or core installation. In addition, Hyper-V can be made available as part of the Hyper-V Server operating system, which is a freeware edition of Windows Server. Either way, the host computer needs the following. The amount of memory assigned to virtual machines depends on the operating system: The number of CPUs assigned to each virtual machine </s> Citrix XenDesktop, Systancia AppliDis Fusion and Ericom PowerTerm WebConnect) provide the ability to host and centrally manage desktop virtual machines in the data center while giving end users a full PC desktop experience. Guest operating systems with "Enlightened I/O" and a hypervisor-aware kernel such as Windows Server 2008 and later server versions, Windows Vista SP1 and later clients and offerings from Citrix XenServer and Novell will be able to use the host resources better since VSC drivers in these guests communicate with the VSPs directly over VMBus. Non-"enlightened" operating systems will run with emulated I/O; however, "integration components" (which include
question: what was the first os to support microsoft hyper-v