Closed-loop systems are able to correct in order to meet target results. Normally a sensor is used to look at the output and adjust the process accordingly. This is called feedback.
A file with an extension of .DAT is known as a Data (General). These .DAT files can be opened on Windows and Apple using programs ...
A DMG file is a mountable disk image created in Mac OS X. It contains raw block data typically compressed and sometimes encrypted. DMG files are commonly used for OS X software installers that are downloaded from the Internet and mounts a virtual disk on the desktop when opened. More Information The DMG format replaces the older .IMG file format used in Mac OS Classic. DMG disk images can be opened using the Apple Disk Utility that is bundled with Mac OS X on Apple computers. DMG files are Mac-specific and are not intended for use in Windows. However, Windows Daemon Tools may be able to mount virtual drives from some DMG image files.