BAK may refer to:
In computing, ".bak" is a filename extension commonly used to signify a backup copy of a file.
When a program is about to overwrite an existing file (for example, when the user saves the document he or she is working on), the program may first make a copy of the existing file, with .bak appended to the filename. This common .bak naming scheme makes it possible to retrieve the original contents of the file. In a similar manner, a user may also manually make a copy of the file before the change and append .bak to the filename.
Other naming schemes are also in widespread use: file~, file.orig, file.old, and so on.
Database Applications like FoxPro and SQL Server use .bak files to back up their databases and other applications, like XML shell, create .bak files in their Autosave process. They don't get automatically deleted, so they need to be manually deleted after the process using it is stopped.
This is a partial list of applications that generate .bak files (in some cases as an optional configuration setting):
Park(박) is a notable Korean surname, traditionally founded by King Hyeokgeose Park (박혁거세) and theoretically inclusive of all his descendants. In Chinese characters (Hanja), it is written as 朴, which is the simplified version of 樸(pu). The name "Park" is usually assumed to come from the Korean noun 박 bak, which means "bottle gourd," or the Korean adjective stem 밝 balk-, which means "bright." In Chinese, it is read as follows: piáo, pǔ, pò, pō. In Korean(박), it is read as 'bak'.
According to Samguk Sagi, a white horse led a village chief to the location of a big egg, and King Hyeokgeose was said to have been hatched from it amid rays of light. the ray of light, or radiance, in pure Korean, "박" is pronounced "Park" or "Bhak". The Chinese character "朴" (pronounced piao in Mandarin and boku in Japanese) was chosen in antiquity to represent the sound. And since 樸 is the traditional character for 朴, they are used together.