Lock (lock primitive) Definition/Meaning:

An indivisible operation that allows a process to ensure that it alone has access to a particular resource. On a single-processor system the indivisible nature of the operation can be guaranteed by turning off interrupts during the action, ensuring that no process switch can occur. On a multiprocessing system it is essential to have available a test-and-set instruction that, in a single uninterruptible sequence, can test whether a register's contents are zero, and if they are will make the contents nonzero. The same effect can be achieved by an exchange instruction. See also unlock, semaphore.

Near by Terms: Load and Go Load and Store Loader Local Local Area Network (LAN) Location Location Operator Lock (lock primitive) Lockout Locks and Keys Logic Logical Logical Data Type Logical Encoding Logical Value (Boolean value)   Logic Card Logic Circuit Logic Diagram Logic Element Logic Family Logic Function Logic Gate Logic Instruction Logic Level Logic Operation Logic Probe Logic Programming Languages Logic State Logic Symbols Login (logon) Logoff (logout) Longitudinal Redundancy Check (LRC) Loop Lower Bound Low-Level Language Low-Pass Filler