the.com/virtualization
one machine pretends to be many, and none of them notice the lie.
means software that carves a single physical computer into isolated virtual ones, each believing it owns the whole hardware.
from ibm pioneered it in the 1960s mainframe era with cp-40, letting one expensive machine fake being many so timesharing users each felt like kings of their own computer.
vmware timingvmware commercialized it for x86 in 1999
hypervisor joba hypervisor is the referee lying to everyone
cloud foundationbasically all cloud computing rests on this trick
efficiency winturns one idle server into ten busy ones