Stopkóðarnir

Stopkóðarnir is an Icelandic term used to describe a class of codes or signals that instruct a system to stop. In its broadest sense, stopkóðarnir serve as predefined instructions that cause a controlled termination of an operation, program, or process. They are designed to promote safety, prevent damage, or enable diagnosis by halting activity and prompting the display of status information.

The term appears in Icelandic technical literature and education and is formed from stop, an English loanword, and kóðarnir, meaning "the codes." Because its exact meaning is domain-dependent, different standards may specify various stop codes, their triggers, and the required responses. In software, stop codes often correspond to fatal errors or user-initiated abort actions. In industrial or process control contexts, they define emergency stop or safe shutdown procedures. In transport or communications systems, stop codes may indicate fault conditions that require ceasing operation or service for safety or maintenance.

Related concepts include stop code in computing, emergency stop, halt instruction, and safety interlocks. The topic of stopkóðarnir is typically treated within technical manuals, safety standards, and educational materials rather than as a single universal specification.