Virtual Machines(shameek)

VIRTUAL MACHINES

BY: SHAMEEK SHAH

NEED OF A VIRTUAL MACHINE.  Heterogeneous information systems.  Porting from one platform to another.  Aging.

OBJECTIVE OF A VIRTUAL MACHINE  Portability  Simplicity  Performance

VIRTUAL MACHINE.  Run time systems.  Programs in high level lang.  Specifications.  Definition by Popek and Goldberg.

TYPES OF VIRTUAL MACHINE

 System virtual machine .

 Process virtual machine .

System virtual machines

 Hardware virtual machine  Hypervisor  Quality-of-service isolation

ADVANTAGES OF SYSTEM VM  Multiple OS environments  Instruction set architecture (ISA)

FEW SYSTEM VMS  COLINUX  Microsoft Virtual PC  Microsoft Virtual Server  VMware(e.g VMWare Workstation)

Process virtual machines

 Application virtual machine  Platform independent.  Implemented.

FEW PROCESS VM  JVM : Java virtual machine (Java)  CLR: Common lang. Runtime (.Net)  P code machine (Pascal prog.)  Zend engine (PHP)

VMware Architecture

WORKING OF VM

VMware Workstation

 x86 and x86-64  Virtual hardware support.  Limitations

SNAPSHOTS of VMW

BOOT Menu

BIOS

Virtual appliance

 Virtual machine image  Difference between VA and VM.

FUTURE OF VIRTUAL MACHINE

GOING TO STAY FOR ALONG TIME

Conclusion  Operating-systems research and

development.  Platform independent solutions.  As time goes by will be bigger and

powerful tool.

Bibliography  www.wikipedia.com  www.vmware.com

THANKING YOU Shameek Shah Icoer Computer dept 3rd year(3136)