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A flat-panel display (FPD) computer monitor A cathode-ray tube (CRT) computer monitor A computer monitor is an output device that displays information in pictorial or textual form. A discrete monitor comprises a visual display , support electronics, power supply, housing , electrical connectors , and external user controls.
For the majority of images it will consume 60–80% of the power of an LCD. OLED displays use 40% of the power of an LCD displaying an image that is primarily black as they lack the need for a backlight , [ 35 ] while OLED can use more than three times as much power to display a mostly white image compared to an LCD.
In computing, a resident monitor is a type of system software program that was used in many early computers from the 1950s to 1970s. It can be considered a precursor to the operating system . [ 1 ] The name is derived from a program which is always present in the computer's memory, thus being resident . [ 2 ]
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System monitor, a hardware or software component used to monitor system resources and performance in a computer system Virtual machine monitor, or hypervisor , is a software that creates and runs virtual machines, allowing multiple operating system images to run simultaneously on a single piece of hardware
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After a page is written to the display, the display may be cut from the power while retaining readable images. This has the advantage that such ebooks may be operated for long periods of time powered by only a small battery. High-resolution color displays, such as modern LCD computer monitors and televisions, use an active-matrix structure.
PC power management refers to software-based mechanisms for controlling the power use of personal computer hardware. This is typically achieved through software that puts the hardware into the lowest power demand state available, making it an aspect of green computing .