CPU and Memory review

In terms of computer memory, what is meant by the term 'volatile'?

• It retains its content when power is cut
• It loses its contents when power is cut
• It is not stable and should not be used
• Memory chips can overheat

What is usually held in the contents of RAM?

• BIOS and Boot sequence needed to start the computer
• Operating System and currently running programs
• Software programs stored within the computer
• Recently executed instructions in case they are needed again

What is stored in Read Only Memory (ROM)?

• Recently opened programs
• Operating system and currently running programs
• BIOS and boot sequence (the computer's initial start-up process)
• The CPU's registers

What is Virtual Memory?

• An additional memory slot located in one of the RAM ports
• A section of volatile memory created temporarily on the storage drive
• Memory stored in the 'cloud'
• Memory that doesn't exist inside the computer but on an external device such as a USB pen drive

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

ROM stands for...

• Read Optical Memory
• Random Only Memory
• Read Only Memory
• Random Optical Memory

RAM stands for ...

• Read Access Memory
• Random Application Memory
• Read Application Memory
• Random Access Memory

This memory stores the data of the operating system and programs that are currently running, for access by the CPU.

• RAM
• ROM
• Cache memory
• Flash memory

Why is Virtual Memory needed in a computer system?

• It is used as a fast type of memory for programs currently in use to speed up the performance of a computer.
• When several programs run at the same time, the RAM can be full. Instead of closing programs the Operating system uses virtual memory to store some data.

Where is data stored when it is Virtual Memory?

• It is stored on a area of a secondary storage device e.g. hard disk drive.
• It is stored in the RAM.
• It is stored in the ROM.
• It is stored in an optical drive e.g. CD.