What is RAM?

Random access memory (RAM) is a type of physical data
storage that can be used to read and write data to so it can be
accessed by a computer’s CPU (central processing unit). RAM is
considerably faster than the hard disk drive memory used to store fi les
and, as such, allows data to be processed more effi ciently. Importantly,
unlike hard disk memory, RAM is volatile and
does not retain info after power is cut to the
machine, resetting for future usage. Today,
DDR SDRAM – or double data rate synchronous
random access memory – is popular as it
provides a high bandwidth for fast reading and
writing. Apart from use in PCs, today RAM is
also present on most smartphones.