the.com/virtualization
one computer politely pretending to be twenty, none of them aware of the lie.
means software that carves a single physical machine into multiple isolated virtual ones, each thinking it owns the hardware.
from born in the 1960s on ibm mainframes like the cp-40, which let one giant machine time-share as many separate pretend machines for different users.
key enablermade cloud computing economically possible at all
hypervisorthe software referee managing all the pretending
vmware moment1999 brought it cheaply to ordinary x86 pcs
container cousindocker skips the fake hardware entirely