Types of storage Flashcards
Other definition for “primary memory”
real memory
Primary memory is directly available to “…”
Systems CPU
Primary memory usually consists of “…”
volatile RAM
How would you describe the performance of RAM?
most high-performance storage available
Secondary storage consists of “…”
more inexpensive + nonvolatile storage
Is secondary storage for short-term or long-term use?
long-term
Examples for Secondary storage
magnetic and optimal media (tapes, disks, hard drives, flash drives, CD, DVD)
What does Virtual Memory allow a system?
to simulate additional primary memory by using secondary storage
What does Virtual Storage allow a system?
to simulate secondary storage by using primary storage
What is the advantage of Virtual storage?
very fast file system for apps (but without recovery capability)
What does Random Access Storage allow an OS?
to request contents from any point within media
Examples for Random Access Storage
RAM, hard drives
What does Sequential Access Storage require?
Scanning through entire media from beginning to reach specific address
Example for Sequential Access Storage
Magnetic tape
Volatile storage characteristics
loses its content when power is removed
