Vmware is provider of virtualization software.VMware’s desktop software runs on Microsoft windows, Linux, and Mac OS X.
Vmware software provides a completely virtualized set of the hardware to the guest operating system.
Vmware software provides a virtualization to hardware for a video adapter, a network adapter and hard disk adapters.
A system administrator can stop operations on a virtual machine guest, move or copy that guests virtual machines to another physical computer and then can resume the operations at the point of suspension.

VMware workstation, servers and ESX take a more optimized path to running target operating systems on the host than emulators ( emulators duplicates the function of one system using a different system, so that second system behaves and appears to be like the first one) which simulate the function of each CPU instructions on the target machine.
This significantly boosts the performance of the system. But there can be some problem while moving the virtual machine guests between hardware hosts using different instruction-sets or between hardware hosts with different number of CPU’s.
Vmware products re-write the code and this code is translated into the binary form by using the “binary translation” which is called by the VMware.
This translated code gets stored in a spare free space.
VMware operates faster than the emulators, running at more than 80% of the speed that the virtual guest operating system would run on the same hardware.

Read VMware Workstation vs. Sun VirtualBox

Tags: VMware