2nd Term Week 1 Computer Monitor

What does CRT stand for in CRT monitors?

• Cathode Ray Tube

• Cathode Ray Television

• Cathode Ray Technology

• Cathode Ray Transmitter

Answer explanation

The CRT in CRT monitors stands for Cathode Ray Tube. This technology uses a vacuum tube to display images on a screen. The correct choice is Cathode Ray Tube, which refers to the tube that emits electrons to create the images. The other options, Cathode Ray Television, Cathode Ray Technology, and Cathode Ray Transmitter, are incorrect. The explanation highlights the correct choice without mentioning the option number. The given question asks for the meaning of CRT in CRT monitors, not the query.

What does LCD stand for in LCD monitors?

• Low Contrast Display

• Light Crystal Display

• Liquid Crystal Display

• Liquid Crystal Diode

Answer explanation

The question asks about the meaning of LCD in LCD monitors. LCD stands for Liquid Crystal Display. This technology uses liquid crystals to produce images on the screen. The correct choice is 'Liquid Crystal Display'.

What is the main difference between CRT monitors and LCD monitors?

• The main difference is the price of the monitors.

• The main difference is the color accuracy of the monitors.

• The main difference is the technology used to display images.

• The main difference is the size of the monitors.

Answer explanation

The main difference between CRT monitors and LCD monitors is the technology used to display images. CRT monitors use cathode ray tubes to display images, while LCD monitors use liquid crystal displays. This difference in technology affects various aspects such as image quality, size, and power consumption. LCD monitors are known for their slim design, higher resolution, and lower power consumption compared to CRT monitors. Therefore, the correct choice is 'The main difference is the technology used to display images.'

What does LED stand for in LED monitors?

• Laser Emitting Diode

• Luminous Electronic Display

• Light Emitting Device

• Light Emitting Diode

Answer explanation

The question asks about the meaning of LED in LED monitors. LED stands for Light Emitting Diode. This technology is used in monitors to provide backlighting and produce images. The correct choice is 'Light Emitting Diode'.

What does OLED stand for in OLED monitors?

• Organic Light Emitting Diode

• Optimized Light Emitting Display

• Organic Liquid Emitting Diode

• Optical Light Emitting Diode

Answer explanation

The question asks for the meaning of OLED in OLED monitors. OLED stands for Organic Light Emitting Diode. This technology uses organic compounds that emit light when an electric current is applied. The correct choice is 'Organic Light Emitting Diode'.

Which type of monitor is generally thinner and lighter: CRT or LCD?

• Plasma

• CRT

• LCD

• LED

Answer explanation

The question asks which type of monitor is generally thinner and lighter between CRT and LCD. The correct choice is LCD. LCD monitors are known for their slim and lightweight design compared to CRT monitors. LCD stands for Liquid Crystal Display, and it uses a different technology than CRT monitors, which are bulkier and heavier. Therefore, LCD is the correct answer.

Which type of monitor is more energy-efficient: CRT or LED?

• LED

• Plasma

• LCD

• CRT

Answer explanation

The question asks which type of monitor is more energy-efficient: CRT or LED. The correct answer is LED. LED monitors are more energy-efficient compared to CRT monitors. LED stands for Light Emitting Diode, and these monitors use less power to produce the same level of brightness as CRT monitors. LED monitors also have a longer lifespan and produce less heat, making them a more environmentally friendly choice. Therefore, LED is the better option in terms of energy efficiency.

What is the main purpose of a computer monitor?

• a) To input data

• b) To store files

• c) To display output

• d) To process calculations

Answer explanation

The main purpose of a computer monitor is to display output. It is not used to input data, store files, or process calculations. The monitor serves as a visual interface that allows users to view the information and results produced by the computer. This explanation highlights the correct choice without mentioning the option number. It is important to note that the query has a question about the main purpose of a computer monitor.

The resolution of a monitor is typically measured in:

• a) Hertz

• b) Inches
  

• c) Pixels
  

• d) Megabytes

Answer explanation

The resolution of a monitor is typically measured in pixels. Pixels are the individual dots that make up the display on a monitor. The higher the number of pixels, the sharper and more detailed the image on the screen. In this case, option c) 'Pixels' is the correct choice as it accurately describes the unit of measurement for monitor resolution. The other options, such as Hertz, Inches, and Megabytes, are not relevant to monitor resolution. Therefore, the correct answer is 'Pixels'.

What is the function of a computer monitor?

• a. Input data into the computer

• b. Display output from the computer

• c. Store files and documents

• d. Process data

Answer explanation

The function of a computer monitor is to display output from the computer. It does not input data, store files and documents, or process data. The correct choice is 'Display output from the computer'.