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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
Describe Laptop HDDs
No cable Remove cover to access compartment Mounting screws
26
Laptop SSD form factors
Usally 2.5 inch form factor(standard) Tablets or ultra thin- mSATA(smaller form factor than 2.5inch) M.2(even smaller form factor)
27
Describe USB Wi-Fi adapter
Allows any device with a USB interface to connect to a wireless network without needing any kind of cables, including power
28
Bluetooth adapters
used to connect peripheral devices to your computer Also referred to as personal area network or PAN
29
Mini PCL
PCL stands for peripheral component interconnect - square slot - interface directly mounted on the motherboard of of the system - Used a 124 pin edge connector
30
Mini PCI Express
54 pin edge connection with a rectangular shape
31
Cellular connections:
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
32
Replacing a Wireless card:
``` Turn off laptop Remove battery Remove wireless card compartment door Remove screws and adapter Detach antenna Install new card Install driver if needed ```
33
Biometrics Security Devices
Requires some kind of additional input to grant access based on physical characteristics of the user
34
Fingerprints scanner
Common type Usually in the form of a small pad onto which your finger is placed Device scan and store unique pattern
35
Facial recognition
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
Iris scanners:
Not common Usually being used to control physical access to a secure room or facility Uses external pattern of your eye
37
Voice recognition
User's voice to grant to deny access easily imitation Recording of a persons voice
38
NFC(Near field Communications)
- an extension of RFID or radio frequency identification - short range( a couple inches Used for Tap payments
39
LCD
Common in laptops and flat panels Replace CRTS(Cathode ray tubes), bulkier and older Produces clear color images
40
DPI stand for
stands for dots per inch (how many dots are in a linear inch)
41
PPI stand for
PPI stands for pixels per inch
42
DPI commonly used in ?
with printed images
43
Fluorescent and LED Backlighting:
all LCD screen types still rely on some kind of backlighting for their illumination
44
CCFL
CCFL stands for cold cathode fluorescent light
45
LED
LED stands for light-emitting diodes
46
LCD technologies
``` IPS(in plane switching) PLS(super place to line) VA(vertical alignment) TN(twisted nematic) TTL(transistor translator logic) ```
47
IPS
best colour accuracy and viewing angles and overall image quality of most LCD displays
48
PLS
a bit brighter than IPS, increase viewing angle, reduced imaged distortion as you increase angle
49
VA
similar to TN and IPS, offers wider viewing angles and better quality but slower response times
50
TN
offers faster response time, best for gamers, but don't have the best viewing angles and contrast ratios and also draws more power
51
TTL
a processing method that describes a monitor that accepts digital signals only as opposed to digital and or analog
52
What does OLED stand for
organic light emitting diodes
53
Describe OLED
thin display no backlighting needed each pixel of the image provides its own lighting
54
Active oled vs passive matrix oled
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
Units of measure for brightness
nits or lumens
56
What do nits refer to ?
nits refer to the brightness of a candle per square mete
57
Advantages of LCD:
Lightweight Low power consumption Inexpensive
58
Disadvantages of LCD
Relies on backlighting(no true representation of black) Hard for colour matching Losing backlight makes it hard to see
59
OLED describe advantages and disadvantages
Good representation of colours Expensive Limited use in laptops
60
Name touchscreen display types
Finger | Stylus
61
Antennas:
the screen is where the buil-in antennas are placed | Multiple types of anttenas for different types of communications- wifi, Bluetooth or cellular
62
Describe webcams
Standard with laptops Include video and sound Software driver required
63
Describe microphones
Integrated into laptop cases Good for general purpose activities like teleconferencing Audio quality not suitable for creating content
64
Describe wi-fi and laptops
Older laptops require external adapter Most newer laptops have built in wireless capabilities
65
Wi-Fi Antennas:
Wrapped around laptop display More durable By placing antenna in the screen, less likely to become damaged
66
Benefits of wifi antennas
Helps to increase the range of reliable wireless communication and provides better performance
67
Webcams info
Commonly used for Internet video communication or video conferencing
68
Performance considerations for webcams
Overall image quality(expressed in megapixels) | High definition quality= 2 million or two megapixels
69
Frame rate
how many still frames can be captured per second, the higher the frame rate, the smoother the video will be
70
USB Webcams:
Portability Compatibility Attachments
71
Portability(USB WEBCAMS)
Portability: Portable, the device is not tied to a specific computer
72
Compatibility(USB WEBCAMS)
Compatibility: Can be used on pretty much any computer, whether desktop or laptop, anything that has a USB port
73
Attachments(USB WEBCAMS)
Attachments: tripod for mounting the unit, a clamp to mount the device on the top of your monitor
74
Microphones:
Embedded in case More sensitive Noise and quality
75
Embedded in case(microphones)
typically embedded somewhere within the exterior casing, location depends on the make and model
76
More sensitive(microphones)
more sensitive, may pick up a lot of extra noise that may be happening in the background
77
Noise and quality(microphones)
when the mic farther away more affects the quality
78
Alternatives to Built in Microphones:
headsets, have headphones and mcirphone combined, USB external mics
79
External Microphones:
Drivers/Apps USB connection PC audio jack Mini plug adapter
80
Define the role of an inverter in an LCD screen
The inverter intercepts that DC power, and converts it back to AC power for use by the bulb that lights the screen.
81
Describe features of digitizers
converts analog input (a user touching their fingertip to the screen) into digital output that can be used by the operating system.
82
Touchscreens
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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