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Introduction to Computers Lesson 3A Lesson 3A

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home 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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Introduction to Computers

Lesson 3ALesson 3A

homehome

Two Kinds of Monitors

Cathode ray tube (CRT)Flat-panel display

homehome

Monitor Categories Based on Color Display

Monochrome: One color on a black backgroundGrayscale: Shades of gray on a white or off-white backgroundColor: From 16 to 16 million unique colors

Page 4: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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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

Page 5: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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Shadow mask

A fine mesh made of metal and fitted to

the shape and size of the screen

Page 6: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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Liquid Crystal Display (LCD) Monitor

Most common flat-panel monitor

Page 7: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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Viewing Angle

The angle from which the display’s

image can be viewed clearly

Page 8: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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Two Categories of Liquid Crystal Displays

Passive matrix LCDActive matrix LCD

Page 9: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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Other Kinds of Monitors

Paper-white displayElectroluminescent (ELD) displayPlasma/gas plasma display

Page 10: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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Considerations When Monitor Shopping

SizeResolutionRefresh rateDot pitch

Page 11: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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Video Controller

Intermediary device between the CPU and the monitorControls how things look on-screen

Page 12: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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Digital Light Projector

Connects to a computer and is used to

project images on a large screen

Page 13: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

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Sound Card

Translates digital sounds into the electric

current that is sent to the speakers

Click to Click to EnlargeEnlarge

Page 14: Introduction to Computers Lesson 3A. home Two Kinds of Monitors Cathode ray tube (CRT) Flat-panel display

Lesson 3ALesson 3A

Monitors and Sound Monitors and Sound SystemsSystems

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