What is Shadow Memory?

Also known as Shadow RAM, Shadow Memory is essentially duplicate routines, which is its own basic input/output operating system or BIOS of the computer system. This duplicate or shadow memory reserve is then located in the protected area of ​​random access or RAM, which makes it easier to load a copy, at any time and as needed. Depending on the type of operating system used, shadow memory can be used at start -up and at certain times during the operation of the device. Other operating systems do not require the use of this type of memory, and even users can often turn off duplicate memory as a means of assigning resources elsewhere.

Shadow memory handbag is to protect the system from possible memory damage only for reading (ROM), which is part of the overall configuration of the system. Older operating systems usually included this particular feature as a means of copyingBIOS for easy search when the system was turned on, and sometimes even when specific tasks were performed during the session. While some of the newer operating systems are no longer relying on this particular approach, it is not uncommon for the standard setting in the system to create a copy of the BIOS and their storage in a secure RAM. The advantage for maintaining this function is that in the unlikely case that the BIOS placed in memory is only damaged in some way, a copy stored in RAM can be used to overcome the problem and help corruption.

Depending on the shadow memory configuration, it can use a significant amount of resources or require only a small amount effectively. Users who are well acquainted with a change in settings in housing copied data bytes. This may be particularly useful if the computer system is connected with a relatively low amount of memory, and more memory to run other programs needs to be assigned.

While using shadow memoryI can be optional with some operating systems, there is a difference in opinion about whether the function should be turned off or permitted. Proponents see the continuing use of this function as a protective measure that may never be needed, but can be very important for recovering the system in the unlikely BIOS corruption event. Others note that newer operating systems have additional protection, which further reduce the potential for this type of problem, making shadow memory more or less outdated.