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CompTIA A+

Terms in this set (20)

SSD
The type of hard drive that has no moving part, so they are more efficient, run with no noise, emit little heat, and require little power
SSD form factors
2.5 inch and 1.8 inch
SSHD
Solid-state hyper drive. Uses the technology from both a hard drive and a solid state drive. Flash memory and hard drive storage. SSD catches the hard drive data.
Magnetic disk
A direct access storage device, with bits represented by magnetized areas.
LCD (liquid crystal display)
Type of display commonly used on portable computers. LCDs have also replaced CRTs as the display of choice for desktop computer users. LCDs use liquid crystals and electricity to produce images on the screen. Resolutions are fixed.
Laptop memory
SO-DIMM and Micro-DIMM
smart card reader
A smart card reader is an electronic device that reads smart cards and can be found in the following form: Some keyboards have a built-in card reader. External devices and internal drive bay card reader devices exist for personal computers (PC). Some laptop models contain a built-in smart card reader and/or utilize flash upgradeable firmware.
Optical drive
A hardware device that uses lasers or light to read from, and maybe even write to, CDs, DVDs, or Blu-ray discs.
Video cards
Often built into the processor or part of the system board (not upgradable). Some laptops have upgradable video cards (not slimline models).
AC adapter
Converts AC to DC
AC adapter Input voltage
110 volts/220 volts
Laptop batteries
Lithium Ion (Li-ion)
OLED on laptops
Organic Light emitting diode
Thinner and lighter
No backlight
More costly and power hungry than LCD
Laptop inverter
The inverter is a small circuit board installed behind the LCD panel that takes DC current and inverts it to AC for the backlight. If you are having problems with flickering screens or dimness, it's more likely that the inverter is the problem and not the backlight itself.
CCFL (cold cathode fluorescent lamp)
Light technology used in LCDs and
flatbed scanners. CCFLs use relatively little power for the amount of light they provide.
LED backlighting
A light-emitting diode (LED) backlight combines a liquid crystal display (LCD) with an LED light source to generate color on computer and TV screens. LED backlighting is needed to produce light and color from behind the screen of a device.
Digitizer
The touchscreen overlay technology that converts finger and stylus contact
into input data for the device to use.
docking station
An external device that attaches to a mobile computer or device and contains a power connection and provides connections to peripheral devices.
port replicator
an external device that provides connections to peripheral devices through ports built into the device. Does not have an expansion card option.
Physical Laptop Lock and Cable Lock
This is a special lock that locks into place when pushed inside a special port on your laptop, locking it onto the system board. Wrap the cable loop around a stable physical object and it cannot be stolen easily. Laptops include metal-reinforced locking slots.
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