Though it may seem from the names that memory and storage devices are same thing, but actually they are far different. Following are the differences between Memory and Storage Devices.
8 Differences between memory and storage devices:
|
Term
|
Memory
|
Storage
|
|
Speed
|
Very speedy, that is, it responds very fast
|
Slower than memory devices
|
|
Cost
|
Very expensive compared to storage devices
|
Less expensive when compared to memory devices
|
|
Storage Type
|
Mostly volatile
|
Non-volatile
|
|
Impact on Performance
|
Has high impact on overall computer performance
|
Has low impact on overall computer performance
|
|
Accessible by
|
Can be accessed by CPU and programs
|
Can be accessed by both CPU, programs and users
|
|
Required Size
|
Generally requires less in storing capability
|
Generally requires more in storing capability
|
|
Importance
|
Memory is a required component of a computer
|
Storage is not a required component
|
|
Alternative use
|
Can’t be used as an storage device
|
Can be used as a memory device
|
Examples:
- Memory: RAM, ROM. Cache Memory etc.
- Storage Devices: Hard Disk Drive, Optical Disks etc.