If the data is lost when the power is turned off, it is volatile
3 of 20
What type of data and instructions is stored in the RAM?
Data and instructions that are in use
4 of 20
Can data be read from the RAM
Yes
5 of 20
Can data be written to the RAM
Yes
6 of 20
Is the RAM volatile or not?
It is volatile
7 of 20
To upgrade computers do you add more or less RAM?
More RAM
8 of 20
What may happen to the RAM if many programs are running?
It may get full
9 of 20
What happens if there is no free RAM?
The operating system will move some data stored in the RAM to the virtual memory on the hard disc drive and swap in the requested data into that free area of the RAM
10 of 20
What data is usually swapped out?
The least recently used
11 of 20
What happens if it is needed again?
It is swapped back in
12 of 20
What is the relationship between RAM and virtual memory?
If there is more RAM, less virutal memory is needed and vice versa
13 of 20
Name two disadvantages of using virtual memory
It is slower than RAM, programs will run more slowly due to the constant swapping "disc thrashing"
14 of 20
What is a ROM used to store?
Instructions that don't need to be changed during normal use
15 of 20
Can data be read from a ROM?
Yes
16 of 20
Can data be written to a ROM?
No
17 of 20
Is ROM volatile?
No, it is non-volatile
18 of 20
In a PC, what set of instructions are stored in the ROM?
The instructions needed for the computer to start up
19 of 20
State which type of memory is used to store application data during execution?
RAM
20 of 20
Other cards in this set
Card 2
Front
What does ROM stand for?
Back
Read only memory
Card 3
Front
What does volatile mean?
Back
Card 4
Front
What type of data and instructions is stored in the RAM?
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