Learning unit 6 Flashcards
List the basic principles that apply to internal and external devices
-Every device is controlled by software
-The best guide for installation and support is the manufacturer
-Certain devices need application software
-A device is no faster than the port its designed to use
Define an administrators account
The user account with the highest level of privileges to change a system
What is the primary Windows tool for managing hardware ?
Device manager
What does a device driver do?
It lists all installed hardware devices, disables and enables devices, updates drivers etc
True/False- USB uses serial connections and devices are hot swappable
TRUE
How many wires does a USB have?
4, 2 for power and 2 for communication
List the types of Video ports
-VGA
-HDMI
-HDMI mini
-DisplayPort
-DVI
Define thunderbolt
A multipurpose connector used for high-end displays, external storage devices and to change power
List peripheral devices
-Barcode readers
-Tap pay devices
-Biometric scanner
-Graphic tablets
-Signature pad
-VR Headsets
-KVM switches
What is an eSATA port used for?
For connecting external storage devices to a computer
List the interface methods
-Wireless connections
-USB port
-Keyboard port
-Serial port
What does a magnetic strip reader/chip reader do?
It can read from the strip/chip to pull information from a card
What does a KVM switch do?
They allow you to use one mouse, keyboard and monitor for multiple devices
List the necessary components for video output
-Monitor
-Video card
List the types of monitors
-LCD
-OLED
-Projector
Define refresh rate
The number of times a monitor screen is refreshed in 1 second
Define resolution
The number of pixels on a screen that can be addressed by software
Define pixel
The spot on the screen that can be addressed by software
Define pixel pitch
The distance between adjacent pixels on the screen
What are the important principles when customizing a system to meet needs?
-Meet application requirements
-Balance functionality and budget
-Consider hardware compatibility
List the features to consider when customizing a NAS device
-Processor with moderate power
-RAID array
-Appropriately sized chassis
-Media streaming capability
Define A VR (virtual reality) headset
A device worn on the head that creates a visual and audible virtual experience for the user using a lens display, speakers, microphone, and head-tracking sensors for interaction
Define a touch screen
an input device that uses a monitor or LCD panel as the backdrop for input options
Define viewing angle
The angle at which a monitor becomes difficult to see from the side
Define contrast ratio
The contrast between true black and true white on the screen…the higher the contrast ratio the better
