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The 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.
- Monitor lizards are a family of large tropical lizards (Varanidae).
- A popular NBC radio program which aired from
1955 to 1975.
This is a disambiguation page; that is, one
that points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and
fix that link to point to the appropriate specific page.
The original version of this page was based on monitor at the Free On-line Dictionary of
Computing (FOLDOC ), and is used with permission under the GFDL.
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