A+ 1001: Peripherals Flashcards
Optical media drives
CD, DVD, BlueRay
CD
CD
- compact disc
- Stores files in iso 9660 standard
- CD-ROM (read only memory)
- CD-R (writeable CD)
- CD-RW (rewriteable cds)
Capacity:
- 650-700 MB
- 80 min
DVD
- Digital versatile disc
- DVD-ROM
- DVD-R
- DVD-RW
- (DL) Dual layered format
- (DS) Dual sided
- (SS) Single sided
- (SL) Single layered
Capacity:
4.37 GB to 15.9 GB
Blu-ray
Blueray
- Designed for high definition video
- Capacity:
- BD-R
- BD-RE (blu-ray Disc Recordable Erasable)
Capacity
25 GB - 50 GB
USB
Universal Serial Bus
Speeds: USB 1.0 (1.5 MB/s) USB 1.1 ( 12 MB/s) USB 2.0 (480 MB/s) USB 3.0 (5GB/s) USB 3.1 gen 1 (5 GB/s) USB 3.1 gen 2 (10 GB/s)
Connectors
- USB Type-A
- USB Type-B : Standard
- USB Type B: Mini
- USB Type B: Micro
- USB Type-B: Micro 3.0
- USB Type-C
Colors: USB 1.1 ( white) USB 2.0 (black) USB 3.0 (blue) USB 3.1 gen 1 (blue) USB 3.1 gen 2 (teal) charging ports (Red, orange, Yellow)
USB Controller
Built into the motherboard
the motherboard will have various usb controllers for the different generations of usb, which are then connected to the Root Hub, which in turn exposes the usb ports
The USB controller sends commands downstream to USB device
A connector: downstream connector (plugged into the motherboard)
B connector: Upstream connector (plugged into the device)
B type connectors are designed to be upstream connectors and so will never be plugged into the computer
C type connectors does away with the upstream donwstream distinction
How to extend the amount of usb ports on a system?
plug a usb hub into a usb port
on windows go to device manager and open the usb controller
The downside is that Because the USB connector provides power, if you plug in too many devices into the hub, then it may not have enough power for all the devices
in the device manager, if you plug in a device via usb and their is a yellow triangle next to the device, what does that mean?
No device driver, need to manually install one
HID
Human interface device
HID drives Keyboards, Mice.
Drive core functionality. If the mouse or keyboard has extra features that are beyond the core functions, then you would have to install additional device drivers to get it to work as intended.
Security Issues with USB
Easy to use a USB to upload Malware or spyware on pc.
To prevent this:
- disable USB ports
- USB lock
Thunderbolt
Special high performance connector type
thunderbolt 1: 10GB/s x 2 channels (20GB/s total)
Thunderbolt 2: 20GB/s
Thunderbolt 3: 40 GB/s
Connector type:
- mini display port conncetor
- usb c
Lightning
High performance connector exclusive to apple devices
uses proprietary lightning connector
Usually used for speed charging
5GB/s
Keyboard
Runs at usb 1.1 speed
conncectors:
- wireless dongle
- usb
- ps/2 (purple keyboard/ green mouse)
Where can we go on windows to make changes to or manage peripheral devices?
Control Panel
Device manager
Windows Settings/ devices
KVM switch
Switch that allows sharing of input devices amongst multiple computers
Speaker Systems
x. 1: x regular speakers and one subwoofer
2. 1/5.1/7.1
connector types:
3.5 audio jacks
audio jack colors: pink - microphone green - front speakers silver/grey - side speakers black: rear speakers orange: subwoofer and central channel blue: auxillary
S/PDIF
Sony/Philips Digital Interface
Optical connector type that is used exclusively for sound connections
mainly used for attaching a receiver system to pc
Where to configure Sound Settings
Windows Settings / Sound
or simply right click the speaker icon and click on sound settings
Trouble shooting Sound
1 Check Power and Volume on a physical device
- Check the device and application volume settings on the system
Readers
- Smart Card Readers / Magnetic Card Readers
Used for authentication / login
Smart cards contains a smart chip
Magnetic Cards contain Magnetic Strip
- Flash Memory Reader
- SD Cards
- Mini SD
- Micro SD
- Olympus XD
Scanners
Flatbed Scanner: Scans paper documents. The downside is that you can only feed one page at a time
ADF (Automatic Document Feed) allows scanners to scan multiple pages
Barcode /QR code scanners
Reads Squares that store alpha/numeric information
expansion slots
PCIe type slots
Can place a single lane in a 16 lane and it will still work
When choosing a slot, consider airflow and the cards required connections
Windows BSOD
windows blue screen of death is very common after new device installation.
- improperly installed peripheral or expansion card
- incompatible device
- Missing or incompatible drivers
Which is a valid capacity for a Compact Disc?
a. ) 74 megabytes
b. ) 74 minutes
c. ) 80 megabytes
d. ) 4.37 gigabytes
b.) 74 minutes
74 minutes is a valid CD capacity. The other values are not valid for CDs.
Which is NOT a valid USB speed?
a. ) 12 Mbps
b. ) 480 Mbps
c. ) 5 Gbps
d. ) 1.1 Gbps
d. ) 1.1 Mbps
1. 1 Gbps is not a valid USB speed. USB 1.1 Full Speed runs at 12 Mbps. USB 2.0 Hi Speed runs at 480 Mbps. USB 3 and 3.1 Gen 1 run at 5 Gbps (SuperSpeed).
Each version of USB in a computer has its own what?
USB controller
Most USB peripherals already have a what?
Windows driver
Which is NOT a valid thunderbolt speed?
a. ) 10Gbps
b. ) 20 Gbps
c. ) 30 Gbps
d. ) 40 Gbps
30 Gbps
30 Gbps is not a valid Thunderbolt speed. Thunderbolt 1 runs at 10 Gbps, Thunderbolt 2 runs at 20 Gbps, and Thunderbolt 3 runs at 40 Gbps.
What color is a PS/2 mouse port?
PS/2 mouse ports are green. PS/2 keyboard ports are purple. Red and blue PS/2 ports are not a standard and are seldom, if ever, seen.
Which utility would a technician use to configure mouse settings?
Control Panel
What kind of audio connector provides digital audio output?
S/PDIF is the Sony/Phillips Digital Interface. The other connector choices are all analog, not digital.
Which is not a consideration when selecting a slot in which to install an expansion card?
a. ) Air flow
b. ) slot type
c. ) Type of operating System
d. ) Space for connectors
c.) Type of operating System
The operating system has no bearing on which slot an expansion card is installed into. Air flow, type of slot, and room for rear connectors are all important considerations when selecting an expansion card slot
Which is not a step in installing a new expansion card?
a. ) Turn on the computer
b. ) Select a connector and slot
c. ) Secure the card in its slot with a slot-cover screw
d. ) Connect any power or data cables to the card
The computer should be turned off before installing a new expansion card (and not be turned on until the installation is complete). All of the other choices are normal steps when installing a new expansion card.
