5. Computer Expansion Flashcards
What is the maximum data transfer speed for USB1.1 technology
12Mbps
What are the three types of DVI cables
- DVI-D : digital only
- DVI-A: analog only
- DVI-I: both digital and analog
What is the maxmum number of devices that can be daisy-chained together with a USB hub
127
Composite Video
An analog video transmission that carries standard definiton video typically at 480i or 576i resolution as a single channel
DisplayPort
A digital connector designed for high-resolution computer monitors
eSATA
External SATA
External SATA (eSATA)
A connector that allows a user to connect external SATA hard drives, solid state drives, and optical drives to the computer
RJ
Registered Jack
RJ-11 (Registered Jack 11)
A connector used for wired analog telephone service and for dial-up modem connections on computers
SATA
Serial AT Attachment
Serial AT Attachment (SATA)
A physical interface used to connect internal hard drives, solid staes drives, and optical drives to the computer
USB
Universal Serial Bus
Universal Serial BUS
A physical interface standard used to connect up to 127 peripheral devices to the computer
Commpon expansion interfaces
- USB
- FireWire
- SATA
- Thunderbolt
- RJ (registered jack)
- VGA,DVI, and DisplayPort
- Analog and Digital Audio
- HDMI
USB Standards
- USB 1:
- USB 2:
- USB 3:
USB 1
- Introduced in 1996
- Not widley available until USB1.1 in 1998
- Two data rates: 1.5 Mbps and 12Mbps
- 1.0 Required use of hubs
- 1.1 Fixed issue of requring hub
USB 2
- Introduced in 2000
- 480Mbps
- Supports battery charging
- Unit Load is 100mA
- Device may draw a total a max of 5 unit loads (500mA)
- Most common standard
USB 3
- Introduced in 2010
- 5Gbps
- 3.1 Introduced in 2015
- 3.1 has a 10Gbps transfer rate
- Unit load is 150mA and a device may draw a max of 6 unit loads (900mA)
- 3.0 Ports are common in newer devices
- 3.1 Ports are only found in the newest
Low Bandwith / Low Speed USB
1.5Mbps (USB1.x)
Full Bandwith / Full Speed USB
12Mbps (USB 1.x)
High Speed USB
480Mbps (USB2.0)
SuperSpeed USB
5Gbps (USB 3.0)
SuperSpeed+ USB
10Gbps USB 3.1
USB OTG
USB On-The-GO
USB On-The-Go
Designed for portable devices that can be connected to a computer for data tansfer or charging, but can also serve as USB hosts to connect to USB flash drives, keyboards, etc
Blue USB connectors

USB 3.x Port
Black USB connectors

Always USB2.0 if other ports are white or blue. (Some devices do not use color coding and use all black ports)
White USB connectors
USB 1.x
Red USB Receptacles
Do not power off when the device is on standby and and cab be used as charing ports even with the computer is asleep
Identify Logo
USB 1.x
Identify Logo
USB 2.0
Identify Logo
USB 3.x
SATA 1.0
- Original SATA
- 1.5 Gbps Data Rate
- Can transfer 150MB/s
SATA 2.0
- 3GBps data rate
- Transfer speed of 300MB/s
- Doubles rate of SATA1.0
- Backwards compatible with 1.0
SATA 3.0
- 6Gbps data rate
- transfer speed up to 600MB/s
- doubles data rate of SATA 2.0
- Backwards compatible with 1.0 and 2.0
eSATA
external SATA
External SATA (eSATA)
- Allows connectionof external SATA storage devices
- Same speeds of internal SATA cables (1.5Gbps to 6Gbps)
- I shaped (as opposed to L shaped)
- max length of 2 meters
- electromagnetic interference shielding
RJ-11
Used for wired analog telephone service and dial-up modem connections
RJ-45
Ethernet connection for wired networks.
similar to RJ-11 connectors (although larger)
8 pin
IEEE 1394
FireWire
FireWire
- General Purpose serial bus
- comparable to USB 2.0 in data rate, but more effiecient for high speed storage and ivdeo connections
- Largely replaced with USB3.0 and Thunderbold devices
Common Firewire data speeds / standards
- 400 Mbps
- 800 Mbps
RS-232
- Low Speed serial connection on old PCs
- Serial Port
- Uses a D-shaped connector called a D-sub
- Port on PC is male rather than femail like most motherboard connections
Serial Port sizes
- DB-9
- DB-25
Parallel
- “Printer Port”
- faster than serial
- 25-pin D-sub
- female on pc side
PS/2
- Dominant standard for mice and keyboards prior to USB
- Uses round 6 pin connectors
- Puple for keyboard
- green for mouse
- can be split colored for auto device type detection
Purple PS/2
Keyboard
Green PS/2
mouse
VGA
- Oldest commonly used display standard
- Videos Graphics Array
- Uses 15pin D-sub connector (Usually blue)
- Analog
- Not Hot-swapable
- Can support 24bit color (true color) and 7680x4800 resolution with a 16:10 aspect ratio
HDMI
High-Definition Multimedia Interface
High-Definition Multimedia Interface (HDMI)
- Designed as an enhanced replacement for DVI with features useful for home theater equipment such as
- Integrated Audio Signal
- Digital Rights Management (DRM)
- smaller and more convenient connector
- Small D shaped connector with two rows of pins
HDMI 1.4 amd higher supports
100Mbps Eithernet
3D video
HDMI 1 supports
- All existing high-definition video formats such as
- 720 p
- 1080i
- 1080p
- 480p
- Standard Definition formats such as NTSC or PAL
- Each successive version adds more resolution options
HDMI 2.0 supports video
- Two video streams to drive multiple displays from as single cable
HDMI 2.0 supports audio
- 32 channels of high definition audo
- older version support 8
What is comparable in features and performance to HDMI 2.1
DisplayPort 1.4
Pink Audio Port
analog microphone audio input
Light Blue audio port
analog line level audio input (used for input from line outputs
Lime green:
Analog line level audio output for the main stereo signal (front speakers or headphones)
Black audio port
analog line level output for surround speakers, typically read stereo
Orange Audio port
analog line level audio output for center channel speaker and subwoofer
Optical Audio
Digital audio signals supporting stereo audio and multichannel Dolby Digital and DTS 5.1 audio surround sound
Gray audio port
Rear-channel audio out (making the black port side left/right channels)
S/PDIF
Sony / Philips Digital Interface
Sony / Philips Digital Interface
- Can be used for audio inpuit or output.
- Electrical S/PDIF cables used RCA connectors
- Optical cables use TOSLINK Connectors
MIDI
Musical Instrument Digital Interface
Musical Instrument Digital Interface
- used to connect synthesizers or other electronic instruments.
- MIDI ports on audio equipment are round five-pin connectors
- MIDI ports on sounds cards tend to be larger D-SUB connectors are also used for older game controllers
Thunderbolt
- Apple technology developed to replace FireWire
- Combines PCIe and DisplayPort into one serial bus
- can transmit and receive:
- data
- video
- audio
- network data
- power
- Allows for external peripheral devices to operate at internal PCIe data speeds
- Expansion cards are implemented on a PCIe graphics card as it can access DisplayPort data and PCIe connectivity on the motherboard
- Bi-directional
Thunderbolt 1 data transfer rate
20Gbits/s … 10Gbits on each of the two data channels
Thunderbolt 2 data transfer rate
20Gbits/s in a single data channel
Thuderbolt 3 data transfer rate
40Gbit/s … 10Gbits/s on each of the four data channels
Thuderbolt can provide how much power to each connected device
- 1 & 2: 10W of power to each connected device
- 3: 15W of power to each connected device
how many connections can be an USB daisy chain
127
How many devices can thuderbolt daisy chain
6 devices per port
Thunderbolt Connectors
- Thunderbolt 1 & thunderbolt 2 use the Mini DisplayPort Adapter
- Thunderbolt 3 uses the USB Type C connector
MDP
Mini Display Port
Thunderbolt can connect what types of displays using adapters
- DisplayPort
- DVI
- HDMI
- VGA
Which Thunderbolt can support dual 4k 60Hz displays
Thunderbolt 3
Wireless peripheral Interface type
- Bluetooth
- Near field communications (NFC)
- Infrared (IR)
Bluetooth Class 2
operates at 10 meter (33 foot) range
Bluetooth class 1
- Gives a longer range,
- Usually only found on industrial equipment.
- High Power
Bluetooth Class 3
- Low Powered
- Only works up to a 1 meter range
- uncommon
Bluetooth 2.x
- supports a max data rate of only 2Mbps
- Older and not very common
Bluetooth 3.0
- Supports a data rate of 25Mbps
- Older but still common
Bluetooth 4,x
- Supports a max data rate of 25Mbs
- Includes a number of features, including more effiecient data transfers
- Introduced Bluetooth Low Energy(BLE), which is intended for low power use devices powered by coin cells
- Most devices are Bluetooth 4.0 or 4.1
BLE
Bluetooth Low Energy
Bluetooth 5
- Not referred to as 5.0
- emerging standard
- found on newer devices
- more flexible combos of speed and range than 4.x
- intended for IOT devices
- its BLE and audio quality imovements are usefil for headsets
IOT
internet of things
DRM
digital rights management
SCMS-T
Serial Copy Management system
NFC
near field communication
Near field communication
- max data rate is 424 Kbps
- requires devices to be within 20cm of another
- Range often reduced to 4 to 5 cm
- Only requires one device to be powered
- the active, or initator generates an RF field that sends information buy also powers the passive device
IR
infrared
Infrared
- uses a ray of light to transmit digital data
- requires line of sight
- max data transfer speed of 4Mbps
Standard HDMI Cable
- Carries video up to 720p or 1080i
- Standard HDMI with ethernet has a dedicated channel for ethernet networking
HighSpeed HDMI
- Carries video resolutions of 1080p, 4k 30Hz, 3D, and deep color
- High Speed HDMI with ethernet has a dedicated channel for ethernet networking
Ultra High Speed HDMI
- Carries video resolutions of 4k, 5k, 8k, and 10k at 120Hz.
- All Ultra High Speed cables include ethernet
The three types of HDMI connector typex
- Standard HDMI / Type A: measures 13.9mm 3 4.45 mm. For use with most desktops, monitors, and HT devices
- Mini-HDMI / Type C: Measures 10.42x2.42mm. For use with portable eltronic devices.
- Micro-HDMI/ Type D: Measures 6.4mm x 2.8 mm. For use with smaller form factor computer and devices
All Connectors are 19 pins, and only differ in size. Can be convereted between them with an adapter
TMDS
transition-mimimized differential signaling
DVI-D Dual Link Connector
- 24 pin connector allowing for two TMDS links that can carry more than 10Gbps of digital video.
- Male connector has pings arranged in three horizontal rows of 8 pins
- to the side of the 24 pings is a wide flat pin called a ground bar
DVI-D Single-Link Connector
- 18 pin connector allowing for one TMDS link.
- Male connector has pings arranged in two groups of nine (with middle empty)
- Flat ground bar off to one side of the 18 pins
DVI-I Dual Link Connector
- 28 pin connector designed to carry both digital and analog signals
- allows for two tdms links
- arranged in three horizontal rows of 8 pins
- to the side is a wide flat pin called a gound bar
- 4 pins surround the ground bar
- Almost identical to the DVI-D dual link except for the 4 pins surrounding the ground bar
DVI-I Single Link connector
- An 22 pin connector desgined to carry both digital and analog signals allowing for one TMDS link
- Pins arranged in two groups of nine
- Ground bar off to tone side
- 4 pins surround ground bar
- Similar to the DVI-D single link except for the 4 ping arround the ground bar
DVI-A
- A 17 pin connector carrying only analog signals. It is single-link and there isn’t a dual-link option
- 4 pins around groun bar
- group of 8 pins and a group of 5 pins
Display Port 1.0/1.1 Bandwidth
8.64Gbit/s
DisplayPort 1.2 Bandwidth
17.28Gbit/s in High Bit Rate 2 (HBR2) mode
DisplayPort 1.3 / 1.4 Bandwidth
32.3 Gbps in High Bit Rate 3 Mode
HBR mode
High Bit Rate mode
USB Type A Connector
- A flat, rectangular connector with four pins.
- Downstream connector
- Transmits both power and data
USB Type B connector
- A square connector with slightly beveled corners.
- Used on peripheral devices such as printers
- Downstream only (only connects to peripherals)
USB Mini A connector
Small 5 pin connector that has been deprecated
USB Mini B
- Small 5 pin connector
- 2/3 width of an A connector
- USB B mini is used for mobile devices
Micro USB A connector
- Small rectangular connector with a white colord receptacle and 5 pins
- Used with USB on-the-go devices such as cellphones, GPS units, PDAs, and digital cameras
Micro USB B connector
- Simiar to Micro USB A in shape, size, and number of pins, but with black colored receptacle
- Used with USB on-the-go devices