A dual inline package switch (DIP switch) is a set of manual electrical switches designed to hold configurations and select the interrupt request (IRQ). DIP switches are used in place of jumper blocks. Most motherboards have several DIP switches or a single bank of DIP switches. Commonly, DIP switches are used to hold configuration settings.
Normally DIP switches are found on motherboards, expansion cards or auxiliary cards. They consist of tiny rectangular components that contain parallel rows of terminals (terminal pins) and a connecting mechanism to the circuit board.
Programmable chips on a computer and extra self-configuration hardware have drastically eliminated the need for DIP switches. The trend is for settings can be accessed through a software control panel, allowing for easier and more convenient changes.
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