Memory Classification : -


   Computer memory can be classified into 2 categories
1. Primary Memory
2. Secondary Memory


Primary Memory :

     It is internal Memory. We can also called it Main Memory.
This is 2 types
1.RAM (Random Access Memory)
2.ROM (Read Only Memory)

RAM :
           It is a volatile memory. In this data are stored as long as the powe is on ( Computer is on.)

ROM :
           It is a non - volatile memory. i.e., the data which are stored in it will resides permunantly , irrespective of the power status

Secondary Memory :
          It is external storage Memory.
Commonly used devices for external storage are as follows
 Floppy Disk, Hard Disk Drive (HDD)/ Whinchester Disk, Compact Disk (CD), Blue Ray Disk, etc.