The main memory is used ti store only the data and instruction which are to be used immediately.
However a computer has to storage in auxiliary memory.
The bulk of information is stored in auxiliary memory
this is also called backing storage
when the power is switched off the data can't be removed
Since 12 inch = 1 feet
so answer is 7 feet
Sky is blue due to scattering
In 1971 hybrid car is invented by "victor wouk"