An information storage device is a memory. Computer memory can be divided into two main groups – internal and external memory. The internal memory includes:
Random access memory (RAM);
Permanent storage device (ROM).
The external ones include:
Optical discs (CD or DVD).
The internal memory is usually volatile, and the external one is non-volatile, respectively, i.e. data can be stored in the internal memory only if there is power. Because of […]Read More