RAM- Random Access Memory is a volatile form of memory. This means that the content written on RAM is wiped off when the power is turned OFF.

ROM – Read only memory like hard disks, tapes are ROM where the content once written is permanently written unless wiped off by the user..

The basic types of memories that a computer has are:

RAM Random access memory

ROM Read Only memory

Cache Memory

Other than these a computer also has secondary storage devices like a hard disk which also contribute towards it memory.