IT 105 Final GMU Questions and
Answers
IT 105 Final GMU Questions and
Answers
IT 105 Final GMU Questions and
Answers
IT 105 Final GMU Questions and
Answers
IT 105 Final GMU Questions and
Answers
IT 105 Final GMU Questions and
Answers
IT 105 Final GMU Questions and
Answers
IT 10...
IT 105 Final GMU Questions and
Answers
Expansion Ports
✓ ~~~ Ports in the system unit of digital devices used for connecting cables and various
add-ons to expand the options for input , output, and storage
Local Bus
✓ ~~~ Carries data at high speeds between the processor and RAM
Expansion Bus
✓ ~~~ Carries data between RAM and external devices that are connected to ports on the
system unit
Hot-Plugging
✓ ~~~ When a peripheral device is connected or disconnected while the host device is
operating
Bluetooth
✓ ~~~ A common wireless technology for connecting peripherals
What makes Bluetooth good for mobile devices?
✓ ~~~ It low-power so it is ideal for mobile devices that don't have big batteries
Bluetooth's Range:
✓ ~~~ 30 feet
Bluetooth's Transfer Speed:
, ✓ ~~~ Slow compared to wired connections (~3Mbps)
USB 2.0 Transfer Speed:
✓ ~~~ ~480 Mbps
FireWire Transfer Speed:
✓ ~~~ ~800 Mbps
USB 3.0 Transfer Speed:
✓ ~~~ ~5Gbps
Thunderbolt Transfer Speed:
✓ ~~~ ~10 Gbps
Device Driver
✓ ~~~ Software that helps a peripheral device establish communication with its host device
Computer Display
✓ ~~~ A device that simply displays text and images
A computer display is classified as a(n):
✓ ~~~ Output device
Touchscreens are classified as
✓ ~~~ Both input and output devices
,Display devices can be
✓ ~~~ Standalone display devices, sometimes called monitors, are popular for desktop
computers.
OR
Built-in display devices for laptops, tablets, and handheld devices, but these devices
may also accept a standalone display device
LCD(Liquid Crystal Display) Technology:
✓ ~~~ Technology that produces an image by filtering light from a backlight through a layer
of liquid crystal cells(One Red, One Blue, and One Green crystal)
LED(Light-Emitting Diode) Technology:
✓ ~~~ Uses LEDs as the video display. This technology is replacing CCFL backlighting
technology
Advantages of LCD Screens:
✓ ~~~ -Display Clarity
-Low Radiation Emission
-Portability
-Compactness
What is the source of backlighting in a LCD screen?
, ✓ ~~~ Cold Cathode Florescent Lamp (CCFL)
The liquid crystal cells used in display devices do not directly emit light, so ____ is
✓ ~~~ The measurement in inches from one corner of the screen diagonally across to the
opposite corner
Response Rate
✓ ~~~ The time it takes for one pixel to change from black to white then back to black
Display devices with fast response rates display a crisp image with minimal ______?
✓ ~~~ Blurring or "ghosting" of moving objects
What is Response Rate measured in?
✓ ~~~ Milliseconds
For gaming systems, a response rate of ____ or less is desirable.
✓ ~~~ 5ms
Dot Pitch (dp)
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