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

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.

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

Many IT professionals think of virtualization in terms of virtual machines (VM) and their associated hypervisors and operating-system implementations, but that only skims the surface. An ...

(Rather confusingly, swap space, which is the part of disk OS X starts to use when you run out of physical RAM, is sometimes also called 'virtual memory', but I don't think that OS X uses that ...