computer

Saturday, February 5, 2011

RAM

                                                           RAM
RAM is a semiconductor memory that stores data, instructions or programs temporarily. it is made up of several small storage areas called locations or cells. each cell has a unique number assigned to it and is called the address of the cell. The cell address or memory address is used to identify the cells. each cell can store one character or one byte of data.  the cells(i.e. content) of RAM can be accessed at random order. so, it is called Random Accessed Memory.
It stores:
1.    Data and instructions that are currently being used by the computer,
2.    The processed Data and
3.    Currently running programs.

These data, instructions or programs are erased from the RAM when the computer is turned off.  Hence it is also called volatile or temporary memory.  As it allows reading its contents and writing on it, it is also called Read/Write Memory. Higher RAM enables a computer to handle longer and complex programs, and enhances their ability to handle graphics and animation.

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