How computer game consoles use hardware to produce highly
interactive game play Main store (or computer memory) is divided
into Read Only Memory (ROM) and Random Access Memory
(RAM).
ROM
ROM is memory that
cannot be changed by a
program or user. ROM
retains its memory even
after the computer is
turned off. For example,
ROM stores the
instructions for the
computer to start up when
it is turned on again
RAM
RAM is a fast temporary type of
memory in which programs,
applications and data are stored.
Here are some examples of what's
stored in RAM: the operating
system, applications ,the graphical
user interface (GUI
Storage capacity and file size
Storage capacities and file sizes are
measured (from lowest to highest) in:
bits ,bytes, kilobytes, megabytes,
gigabytes, terabytes.
CD (Compact Disc)
Optical discs that use the
same technology as music CDs.
They store up to 700MB of
data. CDs can be used for
multimediaapplications such as
encyclopaedias and can store
pictures, sounds and video clips
or anything else that will fit.