Memory access : One charge location i.e. one State of ON or OFF or One bit of 1
or 0 stored on the electronic storage device is called memory location. The
data is stored on the storage device on innumberable memory locations. We
always need to access a particular set of data from this large memory. The ways
to access the particular set of data on the large memory is memory access that
are given as under :
Sequential Access : We need to access the desired set of data
sequentially. Every time the data reader head starts from the first memory
location and move on reading the next memory locations sequentially until it
locates the desired set of data.
Direct Access : Desired set of data is located directly using
memory address of the desired set of data in the sub-divided large memory.
Random Access Memory (RAM) : Data is accessed randomly.
Memory Access Time : The amount of time needed to provide the
data when it is requested is called access time.
Static/Dynamic Memory : The memories that loose data over a period of time are called dynamic memories. One of the example is : memory that loose data when the electric supply is ended and will provide false data if accessed when the electric supply is restarted/restored. Memories that can hold data in its original state for a long time are called static memories.
Static/Dynamic Memory : The memories that loose data over a period of time are called dynamic memories. One of the example is : memory that loose data when the electric supply is ended and will provide false data if accessed when the electric supply is restarted/restored. Memories that can hold data in its original state for a long time are called static memories.
