RAM

Description:

• Random Access Memory.
• The main memory in a computer.
• Volatile.
• When software applications, files and documents are opened they are copied from Secondary Storage to RAM until they are closed.
• RAM is slower than cache but is far faster than secondary storage.

ROM

Description:

• Read Only Memory - So ROM can only be read not written to.
• Non-Volatile.
• ROM comes as a chip that is built on the motherboard of a computer.
• ROM chips contain all the instructions needed for the computer to boot up.
• Right when the computer is powered on the CPU reads the instructions to self check and set up the computer from ROM.