How to Test my Computer to support the intel VT or AMD-V technology?

See http://en.wikipedia.org/wiki/X86_virtualization#Linux_test_for_virtualization_.28AMD_CPU.29 and http://en.wikipedia.org/wiki/X86_virtualization#Linux_test_for_Virtualization_.28Intel_CPU.29.

(Since that article might be entirely rewritten, those links might stop working--if so, then see http://en.wikipedia.org/w/index.php?title=X86_virtualization&oldid=431081221#Linux_test_for_virtualization_.28AMD_CPU.29 and http://en.wikipedia.org/w/index.php?title=X86_virtualization&oldid=431081221#Linux_test_for_Virtualization_.28Intel_CPU.29 instead.)

The commands shown (which start with grep) are to be run in a Terminal window (which you can open with Ctrl+Alt+T). If you copy and paste the commands rather than manually retyping them, you save yourself effort and reduce the risk of making a mistake.

You only need to run the command for the brand of CPU you have. If you don't know if you have an Intel or AMD processor, you can check by running:

grep vendor_id /proc/cpuinfo | head -1