Computer Memory

Primary Storage
or main memory as it is sometimes called stores for very brief periods of time three types of information: data to be processed ny the CPU, instructions for the CPU, as how to process the data and operating system programs that manager various aspects of the computers's operation.

Registers.
Registers are part of the cpu . They have the least capacity, storing extremely limited amounts of instructions and data only immediately before and after processing.

Random access memory
It stores more information than the registers and is farther away from the CPU, but it stores less than secondary storage and is much closer to the CPU than is Secondary storage. RAM is temporary and volatile

Cache memory
It is a type of high speed memory that a processor can access more rapidly than main memory. Cache memory is a place closer to the CPU where the computer can temporarily store blocks of instructions used most often.

Read- only memory
is the place( atype of chip) where certain critical tinstructions are safeguarded. ROM is not volatile and retain these instructions when the power to the computertruned off. The read-only designation means that these instruction can be read only by the computer and can not be changed by user.


SECONDARY STORAGE
Magnetic media
Magnetic diskettes
Optical Storage
Memory cards