a place along a road, border, etc., where travelers are stopped for inspection.
a or item, especially in a procedure, for notation, inspection, or confirmation.
a place, as at a frontier or in a motor rally, where vehicles or travellers are stopped for official identification, inspection, etc
1940, from check (v.) + point (n.). Originally an aviator’s term for landforms or structures of known height against which the craft’s altitude could be visually checked. The “vehicle stop” sense is recorded from 1950.
Saving the current state of a program and its data, including intermediate results, to disk or other non-volatile storage, so that if interrupted the program could be restarted at the point at which the last checkpoint occurred.
This facility came into popular use in mainframe operating systemss such as OS/360 in which programs frequently ran for longer than the mean time between system failures. If a program run fails because of some event beyond the program’s control (e.g. hardware or operating system failure) then the processor time invested before the checkpoint will not have been wasted.
noun 1. a checkpoint in Berlin at which passage was permitted between East and West Berlin.
noun 1. .
noun 1. (in a window sash) a meeting rail, especially one closing against the corresponding rail with a diagonal or rabbeted overlap.
noun 1. (in a window sash) a meeting rail, especially one closing against the corresponding rail with a diagonal or rabbeted overlap. /ˈtʃɛkˌreɪl/ noun 1. (Brit) another word for guardrail (sense 2)