introduction to computers
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Section 3A. Introduction to Computers. Two Kinds of Monitors. Cathode ray tube (CRT) Flat-panel display. Monitor Categories Based on Color Display. Monochrome: One color on a black background Grayscale: Shades of gray on a white or off-white background - PowerPoint PPT PresentationTRANSCRIPT
Introduction to Computers
Section 3ASection 3A
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Two Kinds of Monitors
Cathode ray tube (CRT)
Flat-panel display
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Monitor Categories Based on Color Display
Monochrome: One color on a black background
Grayscale: Shades of gray on a white or off-white background
Color: From 16 to 16 million unique colors
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Pixel
Pixel, short for picture element, is the
smallest number of phosphor dots that
the electron gun inside the monitor can
focus on
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Shadow mask
A fine mesh made of metal and fitted to
the shape and size of the screen
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Liquid Crystal Display (LCD) Monitor
Most common flat-panel monitor
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Viewing Angle
The angle from which the display’s
image can be viewed clearly
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Two Categories of Liquid Crystal Displays
Passive matrix LCD
Active matrix LCD
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Other Kinds of Monitors
Paper-white display
Electroluminescent (ELD) display
Plasma/gas plasma display
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Considerations When Monitor Shopping
Size
Resolution
Refresh rate
Dot pitch
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Video Controller
Intermediary device between the CPU and the monitor
Controls how things look on-screen
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Digital Light Projector
Connects to a computer and is used to
project images on a large screen
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Sound Card
Translates digital sounds into the electric
current that is sent to the speakers
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Section 3ASection 3A
Monitors and Sound Monitors and Sound SystemsSystems