TYPES OF COMPUTER MONITOR || CRT, LCD, LED MONITORS || COMPUTER VIDEOS
Summary
TLDRThis educational video explores the evolution and types of computer monitors. It begins with the history of the first monitor in the Xerox Alta system from 1973. The video categorizes monitors into CRT, LCD, and LED, detailing their advantages and disadvantages. CRTs offer fast response times but are bulky and power-hungry. LCDs are lighter, consume less power, but have fixed resolutions and poor dark color production. LEDs provide slim designs, high picture quality, and energy efficiency but can be expensive and prone to color shifts. The video concludes by affirming that computers can operate without monitors, though it limits user interaction.
Takeaways
- π₯οΈ A computer monitor is an essential output device that displays the computer's activities, commonly used both at work and home.
- π The first computer monitor was introduced as part of the Xerox Alto computer system on March 1, 1973.
- πΊ There are three main types of computer monitors: CRT (Cathode Ray Tube), LCD (Liquid Crystal Display), and LED (Light Emitting Diodes).
- π‘ CRT monitors use a vacuum tube with an electron gun and a fluorescent screen, offering advantages like less cost, fast response time, and high pixel resolutions.
- π« Disadvantages of CRT monitors include their large size, heavy weight, high electricity consumption, heat production, and potential flickering.
- π LCD monitors use liquid crystals between electrodes to control light passage, offering benefits like no radiation, lighter weight, and lower power consumption.
- π’ The downsides of LCD monitors are higher cost, fixed aspect ratio and resolution, poor reproduction of dark colors, and limited viewing angles.
- π LED monitors are the latest type, offering a slim design, bright and sharp images, and a longer lifespan with lower environmental impact.
- π² LED monitors are more expensive and can experience color shifts over time due to age and temperature, and may have inconsistent contrast ratios.
- π» Yes, a computer can work without a monitor. However, without an output device, there's no way to see what the computer is doing.
Q & A
What is a computer monitor?
-A computer monitor is an output device that displays information from the computer, allowing users to see what the computer is doing. It is a common device used both at work and at home.
When was the first computer monitor released?
-The first computer monitor was released on March 1, 1973, as part of the Xerox Alto computer system.
How many types of computer monitors are mentioned in the script?
-The script mentions three types of computer monitors: CRT (Cathode Ray Tube), LCD (Liquid Crystal Display), and LED (Light Emitting Diodes).
What is the advantage of CRT monitors in terms of response time?
-CRT monitors have a fast response time, which is one of their advantages over other display technologies.
What are the disadvantages of CRT monitors?
-CRT monitors are large and take up space, heavy and bulky, consume a lot of electricity, produce a lot of heat, have geometrical errors at edges, and flicker at 50 to 80 hertz.
How does an LCD monitor work?
-An LCD monitor works by placing liquid crystal molecules between two electrodes. The amount of light that can pass through the liquid crystal molecules is determined by the amount of electrical charge applied to the electrodes.
What are the advantages of LCD monitors?
-LCD monitors have no radiation emission, are better under brighter conditions due to anti-glare technology, lighter in weight, have lower power consumption, zero geometric distortion, and low flicker rates.
What are the disadvantages of LCD monitors?
-LCD monitors are slightly more expensive, have fixed aspect ratios and resolutions, are not proficient at producing black or very dark grays, have restricted viewing angles, and slow response times.
What is unique about LED monitors in comparison to other types?
-LED monitors are the latest type, featuring slim designs, brighter and sharper images, flicker-free images, better picture quality, wider viewing angles, no motion delay, longer lifespan, less environmental impact, and lower power consumption.
Can a computer work without a monitor?
-Yes, a computer can work without a monitor. However, without an output device like a monitor, there is no way to determine what the computer is doing.
What are the disadvantages of LED monitors mentioned in the script?
-The disadvantages of LED monitors include being more expensive, having color shifts due to age and temperature, and inconsistent contrast ratios.
Outlines
π₯οΈ Types and Features of Computer Monitors
This paragraph discusses the evolution and categorization of computer monitors, starting with the first monitor introduced in 1973 as part of the Xerox Alta computer system. It outlines three main types: CRT (Cathode Ray Tube), LCD (Liquid Crystal Display), and LED (Light Emitting Diodes) monitors. Each type is described with its advantages and disadvantages. CRT monitors are noted for being less expensive, having fast response times, and high pixel resolutions but are bulky and consume more power. LCD monitors offer no radiation, lighter weight, lower power consumption, and zero geometric distortion but can be more expensive and have limited viewing angles. LED monitors are praised for their slim design, bright images, and lower power consumption but are more expensive and can experience color shifts over time. The paragraph also addresses whether a computer can work without a monitor, confirming that it can, but without an output device, there's no way to see what the computer is doing.
π Stay Updated with New Educational Videos
The second paragraph serves as a call to action for viewers, encouraging them to subscribe and enable notifications to receive updates on new educational content. It thanks viewers for watching and promotes the channel as a source of easy-to-understand education.
Mindmap
Keywords
π‘Computer Monitor
π‘Xerox Alta Computer System
π‘CRT (Cathode Ray Tube) Monitors
π‘LCD (Liquid Crystal Display) Monitors
π‘LED (Light Emitting Diode) Monitors
π‘Response Time
π‘Pixel Resolution
π‘Anti-Glare Technology
π‘Viewing Angle
π‘Refresh Rate
π‘Aspect Ratio
Highlights
Computer monitors are categorized into three types: CRT, LCD, and LED.
The first computer monitor was part of the Xerox Alto computer system, released on March 1, 1973.
CRT monitors use a cathode ray tube containing an electron gun and a fluorescent screen.
Advantages of CRT monitors include less expense, fast response time, and high pixel resolutions.
Disadvantages of CRT monitors are their large size, heavy weight, high electricity consumption, and heat production.
LCD monitors are made of liquid crystals placed between two electrodes.
Advantages of LCD monitors include no radiation emission, better performance under bright conditions, and lower power consumption.
Disadvantages of LCD monitors include higher cost, fixed aspect ratio and resolution, and poor production of dark colors.
LED monitors use light-emitting diodes for flat or slightly curved displays.
Advantages of LED monitors include slim design, bright and sharp images, and lower power consumption.
Disadvantages of LED monitors include higher cost and potential color shifts due to age and temperature.
A computer can work without a monitor, but without an output device, we cannot determine what the computer is doing.
Computer monitors are essential output devices used daily at work and home.
CRT monitors are suitable for use in dim or dark light due to their technology.
LCD monitors have zero geometric distortion and low flicker rates.
LED monitors offer a longer lifespan and less environmental impact compared to other types.
Each type of monitor has its unique advantages and disadvantages for different user needs and environments.
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Transcripts
types of monitor
computer monitor is an output device
which helps us to know what the computer
is doing we use computer monitors daily
at work and at home
the first computer monitor was part of
the xerox alta computer system which was
released on march 1 1973.
computer monitor is categorized into
three types
crt cathode ray tube monitors
lcd liquid crystal display monitors led
light emitting diodes monitors crt
cathode ray tube monitors these monitors
employ crt technology a cathode ray tube
is a vacuum tube containing an electron
gun at one end and a fluorescent screen
at another end
this is the cathode ray tube inside the
monitor
advantages of crt monitor
less expensive than other display
technology
fast response time
highest pixel resolutions
they produce more colors
c r t also suitable for u c than in dim
or dark light
disadvantages of c r t monitor
very large and take up space on a desk
they are heavy and bulky
consume a lot of electricity
produce a lot of heat
geometrical error at edges
flickering at 50 to 80 hertz
lcd liquid crystal display monitors
lcd is made of liquid crystals
liquid crystal molecules are placed
between two electrodes the amount of
light that can pass through the liquid
crystal molecules is determined by the
amount of electrical charge applied to
the electrodes
advantages of lcd monitor
no radiation emission from the screen
better under brighter conditions because
of anti-glare technology
lighter in weight with respect to screen
size
lower power consumption
zero geometric distortion and low
flicker rates
disadvantages of l-c-d monitor
slightly more expensive than c-r-t
high refresh rate
the aspect ratio and resolution are
fixed
not proficient at producing black or
very dark grays colors
restricted viewing angles
slow response times
l-e-d light emitting diodes monitors
led monitors are the latest types of
monitors on the market today these are
flat panel or slightly curved displays
which make use of light emitting diodes
advantages of led monitor
slim design
brighter and sharper images
flicker free images
better picture quality and wider viewing
angle
no motion delay and lags
longer life span and less environmental
impact
lower power consumption
disadvantages of l d monitor
l e d's are more expensive
l e d's can shift color due to age and
temperature
contrast ratios not consistent
can a computer work without a monitor
yes a computer does not require a
monitor to work without a monitor or any
output device we have no method of
determining what the computer is doing
question time
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