noun
line disconnection; hang-up; HUP signal
Technical computing term for disconnecting a communication line, often used in contexts like modem connections or terminal sessions. HUP is a specific signal in Unix-like systems.
モデムが回線切断を検出した。
The modem detected a line disconnection.
回線切断信号はプロセスに終了を指示する。
The HUP signal instructs the process to terminate.
Compound of 回線 (line, circuit) and 切断 (cut, disconnect).