TSR
TSR is a word in Information Technology with its meaning in English.
(Terminate and Stay Resident)- A program, usually loaded automatically on startup, which remains in memory to provide particular functions such as connection to a network or protection against viruses. In Windows TSRs are usually represented by icons in the- System tray, such as the small loudspeaker which represents the volume control for the soundcard. A few TSRs are essential, but many are installed automatically by a particular application just to improve its own performance, with no thought for anything else you may be doing, and may have a negative impact on everything else. Sometimes launched from the- StartUp folder- in the Windows- Start Menu, but often elsewhere as it is too easy to delete them from there.