In addition to managing Power Systems servers, an HMC also provides access to the console of every virtual machine (LPAR) on every managed server. So there is no need for a terminal server to access virtual machine consoles. And even when a Power Systems server is dedicated (running a single copy of an operating system), the operating system must run in a virtual machine and the HMC can be used to access the console of that virtual machine. (Power Systems virtualization has very low overhead, so even if it were possible, there would be little benefit to running an operating system directly on Power Systems hardware.)