Mac only: The New York Times' David Pogue reviews Parallels Workstation for Mac OS X , software which starts up Windows without rebooting your Intel-based Mac (like you have to with Boot Camp.) Boot Camp's problem, though, is right there in its name: You have to reboot (restart) the computer every time you switch systems. As a result, you can't copy and paste between Mac and Windows programs. And
![Run Mac OS X and Windows simultaneously](https://cdn-ak-scissors.b.st-hatena.com/image/square/788c4683fccf259b1d899753e250d1c05f52eb05/height=288;version=1;width=512/https%3A%2F%2Fi.kinja-img.com%2Fimage%2Fupload%2Fc_fill%2Cf_auto%2Cfl_progressive%2Cg_center%2Ch_200%2Cq_80%2Cw_200%2Fu0939doeuioaqhspkjyc.png)