INPUTOUTPUT AND STORAGE DEVICES
STORAGE DEVICES HARD DISK SSD AND FLASH MEMORY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Transfers data faster than RAM.
|
|
|
Transfers data slower than RAM.
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -RAM is considerably faster than virtual memory. RAM, however, tends to be more expensive. When a computer requires storage, RAM is the first used. Virtual memory, which is slower, is used only when the RAM is filled.
Detailed explanation-2: -If your computer is running slowly due to a lack of RAM, you might be tempted to increase virtual memory because it is less expensive. However, adding RAM is a better solution because your processor can read data from RAM faster than from a hard drive.
Detailed explanation-3: -The hard disk generally stores the programs. It takes longer for the CPU to access the hard disk every time in order to execute programs. Therefore, if physical memory initially stores the programs, the CPU can process them more quickly.
Detailed explanation-4: -Microsoft recommends that you set virtual memory to be no less than 1.5 times and no more than 3 times the amount of RAM on your computer. For power PC owners (like most UE/UC users), you likely have at least 2GB of RAM so your virtual memory can be set up to 6, 144 MB (6 GB).
Detailed explanation-5: -Virtual memory can be slow and inefficient, and this can cause applications to run more slowly than they would without it. This is because virtual memory requires the computer to access the hard drive, which is much slower than accessing RAM.