I have been looking for the best virtual machine to play around with operating systems. So far, it looks like I should stick with my Parallels 7, or upgrade to Parallels 8. If I had my druthers, I would have my own General Dynamics High Assurance Open Scalable Technology (G.H.O.S.T) Machine running Intel Trusted Execution Technology (TXT) and Intel Virtualization Technology (VT). For now, I will stick with Parallels.performance should natively boot Windows using Boot Camp. Those who want a compromise between performance and convenience should consider Parallels 8 or Fusion 5, although Parallels 8 holds a performance advantage in most tests. Users looking for a free solution can try the free VirtualBox, although its significantly lower performance underscores the adage that “you get what you pay for.” Depending on the desired task, however, VirtualBox may be all some users need.