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Difference between virtual memory and RAM?
Answer(Techsupport)Resolution: RAM and virtual memory are two different things. Virtual memory allows you to use a portion of your hard drive as though it were RAM. Your hard drive is up to 100 times slower than RAM, so virtual memory is much slower than RAM. When you upgrade your RAM, you can reduce or eliminate the use of virtual memory. Upgrading RAM makes memory available to complete tasks previously handled by virtual memory.
What does the computer use when RAM is full?
Virtual memory, the answer is virtual memory.
Is cache memory equal to virtual memory?
No! ; Cache memory is integrated in the CPU. Virtual memory is a part of the hard drive that the OS use as ram memory, when running out of real ram memory.
Advantage of virtual memory?
Virtual Memory can extend the memory available to programs when the chip-type memory is limited. Windows prefers to have Virtual memory, a lot of games are written to use more virtual memory in an attempt to save you RAM.
Is it possible for a computer to run out of memory with a virtual memory?
Yes. Virtual memory is used when there's not enough RAM in your system. It's just hard drive space that the PC sees as RAM. It is much much slower than RAM though. You could run out of memory if you are running enough programs that your use up all your RAM and your virtual memory is used up.
How can you prevent a specific application in Windows from being relegated to virtual memory?
YOU CAN'T! Virtual memory is a system that is always in use and cannot be disabled. It is not the pagefile and it is not an extension of physical memory. Applications use virtual memory exclusively and never access RAM directly.
Why does your computer show 67MB of RAM available out of 256MB?
Ram is memory. That means you have 67MB of ram left for you to use out of your 256MB of memory.
Does virtual memory lie in CPU?
Virtual memory refers to the combination of your "physical memory" (RAM) and any available "swap file". A swap file is a chunk of your hard drive that the computer sets aside in case your RAM fills up and it needs somewhere to store some extra information temporarily (however swap files tend to be a bit slower as they use a hard drive rather than RAM). So if you had 2GB of RAM on your PC and Windows made a 2GB swap file, you would have 4GB of virtual memory.
What memory allows you to use more memory than is physically available on your computer?
Virtual
What is an advantage of loading an application entirely into RAM rather than loading part of that application into virtual memory?
CPU works directly with the RAM and any memory i/o on the RAM by the CPU is a solid state operation where no mechanical devices are involved. Therefore data operations with RAM are very fast. Virtual memory on the other hand has a portion on the RAM and a portion on the disc that cannot be accomodated in the RAM. This is because virtual memory is much larger than the RAM or even the address space available to the CPU. The virtual memory manager manages loading the data page from the disc and back. When a program needs a portion of data that is in the virtual memory, the virtual memory manager checks if the data is in a page that is already loaded on the RAM. If it is, then it simply hegabs the virtual memory address with the physical address on the RAM so that the program can access the memory. If the data is on a virtual address that is not on the RAM, Lol, the page that contains the portion of the data needed is loaded from the disc onto the RAM and placed in an empty slot that is available so that the virtual address could be converted to a physical address that is on the RAM. However the process of loading the page from the virtual memory involves seeking th page on the disc and loading it onto the ram. It may also involve making space available on the RAM if there is no empty slot found and for that a page needs to be unloaded from the RAM and putting it onto the disc which adds to another disc i/o operation. Thus explains why having the data accessed and operated on the RAM is much faster than Disc i/o. Now-a-days some computers do come with Hard disks that are completely electronic. Virtual memory operations will be much faster with such Hard disk drives. However the process of virtual to physical translation and paging shall still be required.
How do you load something on your computer when you have no memory?
If by memory you mean RAM then you might be able to boot into a live CD and then perhaps use virtual memory from a hard drive?
What happens if you have no virtual memory?
If you are using a modern version of Windows (Windows 95 or latter) you will be using virtual memory. Virtual memory is NOT the pagefile and it is not an extension to physical RAM but a system that is completely integrated into the system. Applications access virtual memory exclusively, no exceptions, ever. You can not disable virtual memory. You can disable the pagefile (not recommended) but this will not disable virtual memory. The system provides a virtual environment to processes that is completely independent of how much RAM is in the system. This is an advanced system that provides many important advantages to applications and users.
