1. A
Cathode-ray tube and asso
Ciated ele
Ctroni
Cs
Conne
Cted to a
Computer' s video output. A monitor may be either
monoChrome (bla
Ck and white) or
Colour (
RGB).
Colour monitors may show either digital
Colour (ea
Ch of the red, green and blue signals may be either on or off, giving eight possible
Colours: bla
Ck, white, red, green, blue,
Cyan, magenta and yellow) or analog
Colour (red, green and blue signals are
Continuously variable allowing any
Combination to be displayed). Digital monitors are sometimes known as
TTL be
Cause the voltages on the red, green and blue inputs are
Compatible with TTL logi
C Chips. See also
gamut,
multisynC,
visual display unit. 2. A programming language
Constru
Ct whi
Ch en
Capsulates variables, a
CCess pro
Cedures and initialisation
Code within an abstra
Ct data type. The monitor' s variable may only be a
CCessed via its a
CCess pro
Cedures and only one pro
Cess may be a
Ctively a
CCessing the monitor at any one time. The a
CCess pro
Cedures are
CritiCal seCtions. A monitor may have a queue of pro
Cesses whi
Ch are waiting to a
CCess it. 3. A hardware devi
Ce that measures ele
Ctri
Cal events su
Ch as pulses or voltage levels in a digital
Computer. 4. To oversee a program during exe
Cution. For example, the monitor fun
Ction in the
Unix C library enables profiling of a
Certain range of
Code addresses. A histogram is produ
Ced showing how often the
program Counter was found to be at ea
Ch position and how often ea
Ch profiled fun
Ction was
Called.
Unix man page: monitor(3). 5. A
Control program within the
operating system that manages the allo
Cation of system resour
Ces to a
Ctive programs. 6. A program that measures software performan
Ce.
In addition suitable Contents:
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