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CompTIA+ > CompTIA A+ Core 1: Installing Hardware & Display Components > Flashcards

CompTIA A+ Core 1: Installing Hardware & Display Components Flashcards

1
Q

What does RAM stand for

A

Random access memory

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2
Q

Laptop memory info

A

SODIMM
DIMMS
Pins and Notches
Size

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3
Q

Describe size of memory

A

2.5 inches to 3 inches

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4
Q

What does SODIMM stand for

A

Small Outline DIMM

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5
Q

What does DIMMS stand for

A

Smaller than desktop dual in-line memory modules

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6
Q

What are SODIMM

A

physical chip of laptop computers

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7
Q

What are DIMMS

A

a chip that you find on desktops

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8
Q

What are memory upgrade considerations

A

Consult motherboard user guide

Determine how much memory you’re using

Modules from different vendors can be mixed

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9
Q

Steps to Replacing Laptop Memory

A

Turn off laptop and disconnect power
Remove memory compartment door
insert memory into slot
Press down until memory clicks into place

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10
Q

How to install new batteries

A

Latch or release button

Usually on bottom of unit(a compartment)

Release old and put in new

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11
Q

CPUs info

A

Consult documentation

Replacement or replacing CPU, depends on model of your motherboard

May require specific configuration

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12
Q

System board info

A

Replacement can be complicated

motherboard is a replicable unit, when replace with same make and model

For laptop, cheaper and efficient to replace entirely

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13
Q

DC jack info

A

Better to replace laptop

Requires soldering, jack integrated onto system board

Motherboard damage, cus too much heat apply wrong area bad

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14
Q

Body info

A

Metal frame

Plastic cover

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15
Q

Describe metal frame

A

internal metal chassis, mount other internal components

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16
Q

Describe plastic cover

A

plastic cover everything up, look good and strong/lightweight

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17
Q

Describe SSD migrations

A

Remove the old disk drive and physically install the new solid-state drive

Make sure to connect all the power and data cables

Reinstalling the operating system

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18
Q

Considerations for fresh installs

A

Set up OS using original source files for that OS

Applications be reinstalled onto the new

Personal files back up and restored after install

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19
Q

Cloning a Hard Disk Drive(HDD) to SSD

A

Clone old drive onto new one

Source drive remains intact

SSD must be atleast same size

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20
Q

Upgrading a Laptop HDD to SSD

A

Result in effective performance upgrade

Some laptops come with an empty SSD slot

Require additional tools and adapters

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21
Q

Using a Cloning Tool

A

Clone old drive to an external or network drive

Replace old drive with new drive

Then Restore cloned image to new drive

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22
Q

Preparing to Replace a System Drive:

A

Back up all data and keep the original drive intact until the upgrade has been completed

Create a recovery disk

Have the right tools, like a standard Philip screwdriver

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23
Q

Removing a drive:

A

Power down and unplug the computer

Use an anti-static mat and wristband- to protect from electric discharge

Open computer case

Disconnect cables and remove mounting screws

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24
Q

Installing a New drive

A 
Remove old drive
Insert new drive
Mount with screws
Attach power and data cables
Close computer cables
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25
Q

Describe Laptop HDDs

A

No cable

Remove cover to access compartment

Mounting screws

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26
Q

Laptop SSD form factors

A

Usally 2.5 inch form factor(standard)

Tablets or ultra thin- mSATA(smaller form factor than 2.5inch)

M.2(even smaller form factor)

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27
Q

Describe USB Wi-Fi adapter

A

Allows any device with a USB interface to connect to a wireless network without needing any kind of cables, including power

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28
Q

Bluetooth adapters

A

used to connect peripheral devices to your computer

Also referred to as personal area network or PAN

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29
Q

Mini PCL

A

PCL stands for peripheral component interconnect

  • square slot
  • interface directly mounted on the motherboard of of the system
  • Used a 124 pin edge connector
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30
Q

Mini PCI Express

A

54 pin edge connection with a rectangular shape

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31
Q

Cellular connections:

A

Allows you anywhere access to high speed internet using the same type of cellular service for your smartphone

Some could be in the form of a USB stick

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32
Q

Replacing a Wireless card:

A 
Turn off laptop
Remove battery
Remove wireless card compartment door
Remove screws and adapter
Detach antenna
Install new card
Install driver if needed
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33
Q

Biometrics Security Devices

A

Requires some kind of additional input to grant access based on physical characteristics of the user

34
Q

Fingerprints scanner

A

Common type

Usually in the form of a small pad onto which your finger is placed

Device scan and store unique pattern

35
Q

Facial recognition

A

recognize and identify unique markers, shapes and structures of the user’s face to gain access

Need a camera

Glasses aging or hats may affect reliability

36
Q

Iris scanners:

A

Not common

Usually being used to control physical access to a secure room or facility

Uses external pattern of your eye

37
Q

Voice recognition

A

User’s voice to grant to deny access

easily imitation

Recording of a persons voice

38
Q

NFC(Near field Communications)

A
  • an extension of RFID or radio frequency identification
  • short range( a couple inches

Used for Tap payments

39
Q

LCD

A

Common in laptops and flat panels

Replace CRTS(Cathode ray tubes), bulkier and older

Produces clear color images

40
Q

DPI stand for

A

stands for dots per inch (how many dots are in a linear inch)

41
Q

PPI stand for

A

PPI stands for pixels per inch

42
Q

DPI commonly used in ?

A

with printed images

43
Q

Fluorescent and LED Backlighting:

A

all LCD screen types still rely on some kind of backlighting for their illumination

44
Q

CCFL

A

CCFL stands for cold cathode fluorescent light

45
Q

LED

A

LED stands for light-emitting diodes

46
Q

LCD technologies

A 
IPS(in plane switching)
PLS(super place to line)
VA(vertical alignment)
TN(twisted nematic)
TTL(transistor translator logic)
47
Q

IPS

A

best colour accuracy and viewing angles and overall image quality of most LCD displays

48
Q

PLS

A

a bit brighter than IPS, increase viewing angle, reduced imaged distortion as you increase angle

49
Q

VA

A

similar to TN and IPS, offers wider viewing angles and better quality but slower response times

50
Q

TN

A

offers faster response time, best for gamers, but don’t have the best viewing angles and contrast ratios and also draws more power

51
Q

TTL

A

a processing method that describes a monitor that accepts digital signals only as opposed to digital and or analog

52
Q

What does OLED stand for

A

organic light emitting diodes

53
Q

Describe OLED

A

thin display

no backlighting needed

each pixel of the image provides its own lighting

54
Q

Active oled vs passive matrix oled

A

higher voltages are used, making them less efficient than the active-matrix.

due to the higher voltage, over time, the organic compounds themselves tended to degrade, which decrease the lifespan of the display

55
Q

Units of measure for brightness

A

nits or lumens

56
Q

What do nits refer to ?

A

nits refer to the brightness of a candle per square mete

57
Q

Advantages of LCD:

A

Lightweight
Low power consumption
Inexpensive

58
Q

Disadvantages of LCD

A

Relies on backlighting(no true representation of black)
Hard for colour matching
Losing backlight makes it hard to see

59
Q

OLED describe advantages and disadvantages

A

Good representation of colours
Expensive
Limited use in laptops

60
Q

Name touchscreen display types

A

Finger

Stylus

61
Q

Antennas:

A

the screen is where the buil-in antennas are placed

Multiple types of anttenas for different types of communications- wifi, Bluetooth or cellular

62
Q

Describe webcams

A

Standard with laptops
Include video and sound
Software driver required

63
Q

Describe microphones

A

Integrated into laptop cases
Good for general purpose activities like teleconferencing
Audio quality not suitable for creating content

64
Q

Describe wi-fi and laptops

A

Older laptops require external adapter

Most newer laptops have built in wireless capabilities

65
Q

Wi-Fi Antennas:

A

Wrapped around laptop display

More durable

By placing antenna in the screen, less likely to become damaged

66
Q

Benefits of wifi antennas

A

Helps to increase the range of reliable wireless communication and provides better performance

67
Q

Webcams info

A

Commonly used for Internet video communication or video conferencing

68
Q

Performance considerations for webcams

A

Overall image quality(expressed in megapixels)

High definition quality= 2 million or two megapixels

69
Q

Frame rate

A

how many still frames can be captured per second, the higher the frame rate, the smoother the video will be

70
Q

USB Webcams:

A

Portability

Compatibility

Attachments

71
Q

Portability(USB WEBCAMS)

A

Portability: Portable, the device is not tied to a specific computer

72
Q

Compatibility(USB WEBCAMS)

A

Compatibility: Can be used on pretty much any computer, whether desktop or laptop, anything that has a USB port

73
Q

Attachments(USB WEBCAMS)

A

Attachments: tripod for mounting the unit, a clamp to mount the device on the top of your monitor

74
Q

Microphones:

A

Embedded in case
More sensitive
Noise and quality

75
Q

Embedded in case(microphones)

A

typically embedded somewhere within the exterior casing, location depends on the make and model

76
Q

More sensitive(microphones)

A

more sensitive, may pick up a lot of extra noise that may be happening in the background

77
Q

Noise and quality(microphones)

A

when the mic farther away more affects the quality

78
Q

Alternatives to Built in Microphones:

A

headsets, have headphones and mcirphone combined, USB external mics

79
Q

External Microphones:

A

Drivers/Apps
USB connection
PC audio jack
Mini plug adapter

80
Q

Define the role of an inverter in an LCD screen

A

The inverter intercepts that DC power, and converts it back to AC power for use by the bulb that lights the screen.

81
Q

Describe features of digitizers

A

converts analog input (a user touching their fingertip to the screen) into digital output that can be used by the operating system.

82
Q

Touchscreens

A

digitzers accept analog information, intecepted using standard x and y cooordinates, coordinates pass to the digitizer and is then converted into digital information

CompTIA+ (8 decks)

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