Computer Science 1.2

... cannot be changed by a program or user. It is used to store instructions for the computer to start up when it is turned on. It also stores the BIOS. NON-VOLATILE.

• RAM

• ROM

• BIOS

... temporary memory in which all programs, applications and data are stored, when they are being used. If the computer is turned off, all the data is lost. VOLATILE.

• RAM

• ROM

• BIOS

... runs as part of the start up system, and loads the operating system. It performs a variety of self-diagnostic tests on the hardware, checks for any hardware attached to the computer and provides a basic user interface where some settings can be changed.

• RAM

• ROM

• BIOS

What does ROM stand for?

What does RAM stand for?

What does BIOS stand for?

Virtual memory is used when ... is full. It is part of the secondary storage used as temporary ... . Data can be moved back and forth between ... and virtual memory. Swapping or paging is a process used by the OS to transfer data between the ... and virtual memory.

Select the disadvantages of virtual memory

• slower than the RAM

• often the OS has has to switch data between virtual memory and RAM

• moving data between virtual memory and RAM takes time

• the virtual memory is really far away

Select all the different types of secondary storage

• optical

• tupperware

• magnetic

• solid state

Select all the types of optical storage

• DVD

• camera

• CD

• DCD