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Written by Xilocex
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Virtualization in computing is a broad term referring to the
abstraction of computing resources. In other words virtualization is a
technology that basically hides the physical processes of computing
from operating systems, applications and end users. Much like a water
facet hides the complexity of plumbing from its users, Virtualization
technologies hide complex hardware tasks from software.
So what are the benefits of Virtualization you might ask? Well to
answer my own rhetorical question, one of the most important benefits
is the ability to run multiple, classically all consuming software
packages on a single computer simultaneously.
With virtualization you can literally run two, three or more operating
systems on the same computer at the same time without the need for any
redundant hardware or restarting. What this means for the end users,
especially those operating in the Mac sphere, is that you can now
simply install all the other operating systems and applications you may
need without having to buy more than one computer.
What you will need to get started with virtualization is any new,
meaning Intel based, Mac computer or any Wintel PC with an Intel
processor with VT technology and enough Random Access Memory (RAM) for
at least two operating systems, host and guest, to have at least 512
mega bytes available to each of them at the same time.
The RAM amounts aren’t necessarily required but if you plan for example
to run Windows XP and Mac OS X at the same time, then in order for the
performance to be good in both operating systems, your computer should
have RAM at or in excess of one gigabyte. A good guideline is that you
need as much RAM as would make the operating systems you intend to run
in parallel each happy at their minimum RAM needs and then allow your
guest operating systems to have access to a larger chuck for running
their applications. It's probably important to note here, so I will,
that a guest operating system will not consume the entire block of RAM
that you allocate to it, during initial set up, while running but not
doing anything. In other words just like applications in your host
operating system a guest operating system will only use RAM when it
needs it leaving it free for the host and other guest operating systems
until needed.
Once you have all Virtualization hardware requirements met you will
need software to get the whole thing running. Two commercial Mac and PC
compatible options can be found at: http://www.vmware.com and http://www.parallels.com and if your more of the open source do-it-yourselfer type then you can check out: http://fabrice.bellard.free.fr or for Macs specifically http://www.kju-app.org/kju/ Then the only thing left to do is pick out and install your guest operating system of choice.
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