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MonitorThe word monitor, depending on context, may have one of the following meanings: - A computer display
- A speaker used on stage or in a studio to enable musicians to hear what is being recorded or broadcasted
- A concurrent programming language construct which encapsulates variables, access procedures and initialisation code within an abstract data type. The monitor's variable may only be accessed via its access procedures and only one process may be actively accessing the monitor at any one time. The access procedures are critical sections. A monitor may have a queue of processes which are waiting to access it. Monitors in this sense were invented by C. A. R. Hoare.
- A hardware device that measures electrical events such as pulses or voltage levels in a digital computer.
- To oversee a program during execution. For example, the monitor function in the Unix C library enables profiling of a certain range of code addresses. A histogram is produced showing how often the program counter was found to be at each position and how often each profiled function was called.
- A control program within the operating system that manages the allocation of system resources to active programs.
- A machine code monitor used by programmers to modify computer memory contents, including entering and modifying machine language programs.
- A program that measures software performance.
- USS Monitor, the ironclad warship of the American civil war.
- A monitor warship type of ship based on the USS Monitor and built by several navies for coastal defence in the 1860s and 1870s. It reappeared in a different form during the First World War.
- A river monitor, the strongest type of river warships.
- Monitor lizards are a family of large tropical lizards (Varanidae).
- A popular NBC radio program which aired from 1955 to 1975.
- Two characters from the DC Comics limited comic book series, Crisis on Infinite Earths.
- A baby monitor
- Also the AI that is the caretaker of Halo (better known as 343 Guilty Spark).
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