RAM is an acronym for, Random Access Memory. It refers to one or more electronic chips that can be installed in a computer to serve as temporary memory. This memory only contains information while the computer is switched on.
This memory is used by the operating system and software running on the computer to perform its tasks.
It is possible to upgrade (increase the capacity) of the RAM installed in a computer under certain conditions. RAM size is generally measured in Megabytes(MB) or Gigabytes(GB).