OS X Lion's FileVault technology may seem to make encrypted virtual memory redundant, but maintaining encryption even with FileVault 2 enabled is likely a good idea.

What does virtual memory actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

What does virtual machine monitor actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Terms like hard disk, drive, partition, and image are often confusing. Knowing the difference saves time and avoids errors ...