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It is possible for motherboard manufacturers to put safeguards in place to prevent serious damage; for example, the update procedure could make and keep a backup of the firmware to use in case it determines that the primary copy is corrupt (usually through the use of a checksum, such as a CRC).Video games receive patches to fix compatibility problems after their initial release just like any other software, but they can also be applied to change game rules or algorithms.
Bulky patches or patches that significantly change a program may circulate as "service packs" or as "software updates".
Compared with the initial installation of software, patches usually do not take long to apply.
In the case of operating systems and computer server software, patches have the particularly important role of fixing security holes. Patches may require prior application of other patches, or may require prior or concurrent updates of several independent software components.
Patch management is a part of lifecycle management, and is the process of using a strategy and plan of what patches should be applied to which systems at a specified time.
Patches for proprietary software are typically distributed as executable files instead of source code.