I
just bought a brand new computer so everything must be up-to date
right?
The answer in a word is-No!
Each
computer manufacturer builds a computer using a series of components
known as hardware and software that either they manufacture or purchase
from a third party. It is the computer manufacturer's responsibility
to make sure that every component functions correctly when working
together as a group within the computer. As a result, they select
all the computer parts, test their compatibility, and then "lock
down" the build series. One of the difficulties with this process
is that software is always evolving. As a result of this evolution,
the third party software manufacturer will create a series of software
"patches" that typically fix bugs (incompatibilities), security
issues or minor improvements after the build "lock down."
Over several months quite a few "patches" are created to
update their software. As example, Microsoft's Windows XP is up to its third service pack that contains many patches and their new Windows Vista that came out in March 2007 already has a numer of patches. The computer manufacturer build "lock
down" will not include all these changes since it would require
retesting the entire machine each time a patch is issued.
Do
not despair. Microsoft has made it easy to keep their operating system
software up-to-dater.