Virtual Memory

Memory that uses secondary storage so that it seems like an entire program is running from RAM

• Cache Memory

• Virtual Memory

• Flash Memory

• Registers

Virtual memory is

• a memory management technique
• a virus checking utility
• a piece of hardware
• an series of pixels used to represent an image

Virtual memory is used

• when the RAM is not enough to contain all of the programs and data currently being used
• every other time a program is used
• as a secondary storage medium for long term storage of documents
• when the CPU is getting overheated

Virtual memory typically uses two storage devices, RAM and ______________.

• the hard drive
• ROM
• a secondary piece of RAM
• a CD-ROM

A program stored in virtual memory may run slower than a program stored on the RAM

• TRUE
• FALSE

The computer can take programs out of the RAM and store them in virtual memory, this frees up the RAM to be used to open more programs.

• TRUE
• FALSE

Hard drives have faster access times than RAM

• TRUE

• FALSE

The more programs you have open, the less RAM and virtual memory will be needed.

• TRUE

• FALSE

Virtual memory makes use of secondary storage as if it were main memory.

• TRUE
• FALSE

Why is Virtual Memory needed or used by a computer?

• When RAM becomes full because of too many programs running at once

• When ROM is too small and struggles to store the Operating System

• When users wish to store data on an external server such as 'the cloud'

• When chosen by the user or computer administrator