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CompTia ITF+ > Chapter 2 Peripherals and Connectors > Flashcards

Chapter 2 Peripherals and Connectors Flashcards

1.5, 2.1, 2.2

1
Q

Data in Transit

A

digital data that is actively moving between two different computer systems, applications, or locations.

(Measured in bits/per second) or bps; Kbps, Mbps, Gbps, Tbps

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2
Q

Throughput

A

the amount of data that can be sent through a cable or space. There are about 1000 Bits in a kilobit and so forth

  • Measured in bits/per second (bps)
  • Kbps, Mbps, Gbps, Tbps
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3
Q

Interface

A

a physical connection across which two or more separate components of a computer system exchange information

  • Network Interface
  • Peripheral Device Interface
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4
Q

Network Interface

A

allow communication from one computing device to another computing device

  • connection from a laptop to a smartphone
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5
Q

Peripheral Device Interface

A

allow communication from a computing device to a peripheral device

  • a connection from a laptop to a printer
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6
Q

Graphical Device Interface

A

allow you to transmit visual data for display purposed from a computing device to a graphical device

  • interface that created a connection from a desktop PC to a computer monitor
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7
Q

Wired Interfaces

A

require a cable to extend between two devices

  • terminate with a connector and these connectors will plug into a port on the device
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8
Q

Connector

A

the side of a connection with a pin or pins

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9
Q

Port

A

side of a connection with a hole or holes

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10
Q

Wireless

A

uses radio frequencies, or RF for short

  • does not mean a physical connection does not exist
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11
Q

Radio Frequencies

A

an electromagnetic signal used to connect computing devices without wires

  • electromagnetic connection is still a physical property allowing transmitting of information making it a physical interface
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12
Q

Electrical Signal

A

when electricity is used to convey information. There are two main types of signals used in electronics: analog and digital signals

  • analog and digital signals
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13
Q

Analog Signal

A

a signal that produces a smooth and continuous curve where binary 1s and 0s are represented by the highs and lows of the signal voltage

  • produces smooth and continuous upward and downward curves
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14
Q

Digital Signal

A

a signal that represents data as a sequence of discrete values where binary 1s and 0s are represented by the presence or non-presence of voltage

  • allows for higher data throughputs
  • gradually increases and decreases in voltage are replaced with discrete values
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15
Q

Telephone Connector (RJ-11)

A

a wired networking interface standard used for telephone communications and dial-up internet

  • 6 pin connector
  • commonly found in house phones and modems
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16
Q

Ethernet Connector (RJ-45)

A

a wired networking interface standard used in Ethernet networking to terminate ethernet CAT cables

  • 8 pin connector
  • commonly found in routers, switches NICs
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17
Q

Category, or CAT cables

A

a type of twisted pair cabling

  • 8 individuals wires
  • grouped into 4 pairs
  • each pair is color coded and then twisted together
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18
Q

Near Field Communication (NFC)

A

a wireless networking interface standard that uses radio frequencies to share data over a short distance of a few centimeters

  • Distance limitation of 18cm (6in)
  • Maximum throughput of 424 Kbps
  • contactless payment processing (Apple pay)
19
Q

Bluetooth

A

a wireless networking interface and peripheral device interface standard that uses radio frequencies to share data over a short distance of a few meters

  • Distance limitation of 10m (30ft)
  • Maximum throughput of 24 Mbps
  • wireless networking device and peripheral device interface
20
Q

Universal Serial Bus (USB)

A

a wired peripheral device interface standard

  • USB Type A: most common connector seen mostly on flash drives
  • USB Type B: used to connect printers
  • Micro USB: used to charge older mobile devices
  • Mini USB: used to charge more recent devices
  • USB Type C: used with the most current device. Is bi-directional
21
Q

Plug-and-play

A

revolutionize the way we connect and use peripheral devices by eliminating the need for complex manual software installations

22
Q

Hot-swappable

A

plug or unplug USB devices from your computer while it is powered on, without needing to restart or shut down the system, providing convenient and seamless connectivity

23
Q

Data Transmission and Power

A

enables the simultaneous transfer of data and power between devices

24
Q

FireWire

A

a wired peripheral device interface standard

  • plug-and-play
  • hot-swappable
  • Data Transmission and Power
  • 6 pin and 4 pin connectors options
25
Thunderbolt
a wired networking interface, peripheral device interface and graphical device interface standard all in one. Uses video, sound, internet connectivity, power and data overall - Transmits visual data for display purposes - Supports throughputs up to 40Gbps
26
Radio Frequency Identification (RFID)
a wireless peripheral device interface technology used to communicate and interact with RFID-enabled peripherals - Readers/Scanners and Tags - Passive and Active
27
Video Graphics Array (VGA)
- Released in 1986 - has a 15-pin connector - provides video only - analog signals only - separated and individually transmitted colors as Red, Green, and Blue (RGB) values
28
Digital Video Interface (DVI)
has high picture quality but cannot transfer sound. Three types: DVI-D (Digital), DVI-A (Analog), DVI-I (digital & analog - released in 1999 - analog and digital signals - connectors can have up to 29-pin - provides video only
29
High-Definition Multimedia Interface (HDMI)
- released in 2002 - had a 19-pin connector - provides audio and video - Digital signals
30
DisplayPort
is an interface for digital displays, particularly computer monitors. Great for high definition video and sounds. - released in 2008 - has a 20-pin connector - provides audio and video - digital signals
31
Printer
a peripheral device which makes a physical rendering of digital data, usually on paper or creates a physical object from a three-dimensional digital model in the case of a 3-D printer - Laser printers - Inkjet Printers - Thermal Printers - Impact Printers - 3-D Printers
32
Scanner
a peripheral device that optically scans images or object and convers them into digital data - flatbed scanners - sheet-fed scanners
33
Keyboard
a peripheral device used to input data and commands into a computer or other electronic device
34
Mouse
a hand-held pointing device that allows users to control the movement of a cursor or pointer on a computer screen
35
Camera
a peripheral device that records video images using a digital sensor - external or internal - may include microphone
36
External Hard Drive
a peripheral storage device, often portable, that connects to the exterior of a computing device - commonly connect via USB or Thunderbolt interface
37
Speakers
a peripheral output device that converts digital data to audible sounds - playback device
38
Display
a peripheral output device that converts digital data into visual images for human observation - Computer Monitors - Built-in Screens - Projectors - Television
39
Scaling
a configuration option that adjusts the size of text, icons, and navigation elements presented to the user
40
Display Resolution
the number of pixels displayed on a screen, determining the level of detail and clarity in the visual content - width x height
41
Plug-and-Play (PnP)
an installation type that allows a peripheral device to be easily connected or installed without the need for complex configuration, setup processes, or software installation - faster installation - no technical expertise requires - limited features
42
Device Driver
a software program that facilitates communication between a computing device's operating system and a specific peripheral device. - slower installation - requires some technical expertise - custom features
43
Input Device
a device that transfers a user action data for processing - keyboard - mouse - trackball - joystick - scanner - microphone
44
Output Device
is a device that provides (Outputs) data to the user. - printer - speaker - headphones - monitor - projectors

CompTia ITF+ (11 decks)

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