MEMORY

The internal memory is used to store critical software needed to operate the computer and application programmes or data which the computer is currently working on. It is located very closed to the CPU chip and is sometimes considered part of the CPU.
Memory size measurements:
· 1 bit = 0 or 1
· 8 bits = 1 byte represents 1 character
· 1 Kilobyte (Kb) is approximately 1 000 bytes
· 1 Megabyte (Mb) is approximately 1 million bytes
· 1 Gigabyte (Gb) is approximately 1 billion bytes

Types of memory

READ-ONLY MEMORY
Read-only memory (usually known by its acronym, ROM) is a class of storage media used in computers and other electronic devices. It is also known as the permanent memory that store the startup programmes as the contents cannot ne changed by users and unaffected by power failure.

RANDOM ACCESS MEMORY
Random access memory (also known as RAM) is a type of computer data storage. It is also known as the working memory of the computer. It takes the form of integrated circuits that allow the stored data to be access at any order, i.e. at random. It is a volatile memory as the contents ate erased when the computer is switched off.