Companies will increasingly integrate physical and computer security systems in 2005, spending over $1 billion in the United States and Europe, according to a new report from Forrester Research.

Virtual machines emulate physical computers; they're easy to create and configure, and you can experiment without harming the ...

A virtual machine is a computing resource that uses software instead of a physical computer to run programs and deploy applications. It operates by running one or more virtual “guest” machines on a ...