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Laptop Hardware - CompTIA A+ 220-1101 - 1.1 > Laptop Displays - CompTIA A+ 220-1101 - 1.2 > Flashcards

Laptop Displays - CompTIA A+ 220-1101 - 1.2 Flashcards

1
Q

What does LCD stand for?

Light Color Display
Liquid Crystal Display
Linear Circuit Display
Layered Compact Display

A

Liquid Crystal Display

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2
Q

How does an LCD display work?

Light is emitted by organic compounds.
Light shines through liquid crystals.
It reflects ambient light to produce images.
It uses lasers to generate light.

A

Light shines through liquid crystals.

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3
Q

Which LCD technology is known for fast response times but poor viewing angles?

IPS
VA
TN
OLED

A

TN

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4
Q

Which LCD technology offers excellent color representation but is more expensive?

VA
IPS
TN
LED

A

IPS

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5
Q

What is the main advantage of VA (Vertical Alignment) LCDs?

Fast response times for gaming
Excellent color representation at an affordable cost
No need for a backlight
Superior viewing angles compared to IPS

A

Excellent color representation at an affordable cost

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6
Q

What does OLED stand for?

Organic Light Emitting Diode
Optical Light Emission Display
Organic Layer Electric Display
On-Line Emitting Diode

A

Organic Light Emitting Diode

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7
Q

What is a key feature of OLED displays?

Requires a backlight for illumination
Uses glass for structural support
Organic compounds emit light directly
Has slower response times than LCD

A

Organic compounds emit light directly

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8
Q

Which devices commonly use OLED displays?

Desktop monitors
Old laptops
Tablets, phones, and smartwatches
Projectors

A

Tablets, phones, and smartwatches

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9
Q

What is the purpose of the antenna wires in a laptop display?

They power the display screen.
They improve Wi-Fi and Bluetooth signals.
They enable OLED functionality.
They support video capture for webcams.

A

They improve Wi-Fi and Bluetooth signals.

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10
Q

Where are antenna wires located in a laptop?

Around the screen
Under the keyboard
Behind the battery
Inside the SSD

A

Around the screen

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11
Q

What wireless technologies use the laptop’s antennas?

NFC and infrared
Bluetooth and Wi-Fi
Ethernet and fiber optic
LAN and WAN

A

Bluetooth and Wi-Fi

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12
Q

What is a webcam primarily used for?

Capturing audio
Making video calls
Scanning documents
Displaying high-resolution content

A

Making video calls

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13
Q

Why are built-in webcams not ideal for professional video capture?

They have low resolution and fixed microphones.
They consume too much power.
They lack software support.
They are incompatible with most laptops

A

They have low resolution and fixed microphones.

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14
Q

What can improve audio quality during video calls?

Using a second display
An external analog or USB microphone
Increasing the webcam’s resolution
Changing the display brightness

A

An external analog or USB microphone.

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15
Q

What does CCFL stand for?

Cold Cathode Fluorescent Lamp
Color Cathode Fluorescent Light
Compact Cathode Fluorescent Lamp
Cold Circuit Fluorescent Light

A

Cold Cathode Fluorescent Lamp

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16
Q

What is a disadvantage of CCFL backlighting?

High voltage and power are required.
It is incompatible with LCDs.
It causes color distortion.
It cannot be replaced when broken.

A

High voltage and power are required.

17
Q

What backlighting is used in the latest laptops?

CCFL
LED-backlit
OLED
Plasma

A

LED-backlit

18
Q

What does an inverter do in a laptop?

Converts DC power to AC power.
Powers the laptop’s processor.
Connects the keyboard to the motherboard.
Enhances Wi-Fi signals.

A

Converts DC power to AC power.

19
Q

How can you check if a laptop backlight has failed?

Use a voltmeter on the motherboard.
Shine a flashlight on the back of the screen.
Restart the laptop and check the BIOS.
Remove the display and inspect the components.

A

Shine a flashlight on the back of the screen.

20
Q

Why do LCD displays need a backlight?

To amplify sound.
To illuminate the liquid crystals.
To connect with the motherboard.
To power the display’s antennas.

A

To illuminate the liquid crystals.

21
Q

What is a digitizer commonly used for?

Wireless connectivity
Touch input on laptop/tablet hybrids
Enhancing backlighting
Audio amplification

A

Touch input on laptop/tablet hybrids

22
Q

On which devices are digitizers most commonly found?

Desktop PCs
Laptops without touchscreens
Tablets and hybrid devices
OLED displays

A

Tablets and hybrid devices

23
Q

What is the primary purpose of a digitizer?

Converts analog signals into digital input.
Enhances image resolution.
Reduces response time.
Supports Bluetooth functionality.

A

Converts analog signals into digital input.

Laptop Hardware - CompTIA A+ 220-1101 - 1.1 (2 decks)

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