People wonder about this
all the time : “My computer has two gigs of RAM. Why would I need
more?”
Like many other things in
the computer industry, virtual memory was born out of necessity.
Fairly early on in personal computer evolution, it was decided that a
computer would never need more than 640 KB ( yes, kilobytes) of
memory. Oops. For DOS it was fine, mostly, but once graphical
operating systems came into the world, the number of resources needed
jumped significantly.
Flash back to the late
1980s/early 1990s – if you had 4MB of RAM in your system, you were
doing well. Very well, in fact, because RAM cost over $100 per
megabyte. If you wanted more memory for windows to use, then you had
two choices – one was to mortgage your property, and the other was
to use another source: virtual memory.
Hard disk space was and
probably always cheaper per megabyte than RAM, simply because of the
technology involved. So, while hard disks might be slower than RAM,
they are bigger and cheaper. Using space on them for virtual memory
made a ton of economic sense then and still does today.
Do you want to know more
about hardware in PC? Join the A+ course in SLA Employment Training Company in Chennai. You can be well equipped to handle any PC
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For more details visit SLA Chennai or dial (91 44) 4200 5050/90.
I’ve desired to post about something similar to this on one of my blogs and this has given me an idea. Cool Mat.
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