RAM

This is the memory that the computer uses for storing the programs and their data while working on them So, if you are drafting a letter using a word processor,sayMS-Word, you are working with a document loaded into the RAM. Tostore your letter for later use, it has to be saved on the hard disk. Later, you can retrieve it from the disk and continue working on the document. Thus, RAM function as a scrtch pad for the computer and is sometimes called the scratch pad memory.

RAM has the following characteristics:

• Data within the RAM cn be read or modified, i,e. you can either read from theRAMor write onto it. Hence it is called read/write memory.
• The contents of the RAM are lost when the computer is switched off. Hence, the RAM is said to be volatile.

The capacity of RAM depends on the number of memory chips installed, which in turn depends on the capacity the microprocessor can handle.The RAM size is an important parameter in determining the sizeand complexity of problems that a computeter can handle.When people refer to the amount of

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