Learning unit 6

Question 1

List the basic principles that apply to internal and external devices

Answer 1

-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

Question 2

Define an administrators account

Answer 2

The user account with the highest level of privileges to change a system

Question 3

What is the primary Windows tool for managing hardware ?

Answer 3

Device manager

Question 4

What does a device driver do?

Answer 4

It lists all installed hardware devices, disables and enables devices, updates drivers etc

Question 5

True/False- USB uses serial connections and devices are hot swappable

Answer 5

TRUE

Question 6

How many wires does a USB have?

Answer 6

4, 2 for power and 2 for communication

Question 7

List the types of Video ports

Answer 7

-VGA
-HDMI
-HDMI mini
-DisplayPort
-DVI

Question 8

Define thunderbolt

Answer 8

A multipurpose connector used for high-end displays, external storage devices and to change power

Question 9

List peripheral devices

Answer 9

-Barcode readers
-Tap pay devices
-Biometric scanner
-Graphic tablets
-Signature pad
-VR Headsets
-KVM switches

Question 10

What is an eSATA port used for?

Answer 10

For connecting external storage devices to a computer

Question 11

List the interface methods

Answer 11

-Wireless connections
-USB port
-Keyboard port
-Serial port

Question 12

What does a magnetic strip reader/chip reader do?

Answer 12

It can read from the strip/chip to pull information from a card

Question 13

What does a KVM switch do?

Answer 13

They allow you to use one mouse, keyboard and monitor for multiple devices

Question 14

List the necessary components for video output

Answer 14

-Monitor
-Video card

Question 15

List the types of monitors

Answer 15

-LCD
-OLED
-Projector

Question 16

Define refresh rate

Answer 16

The number of times a monitor screen is refreshed in 1 second

Question 17

Define resolution

Answer 17

The number of pixels on a screen that can be addressed by software

Question 18

Define pixel

Answer 18

The spot on the screen that can be addressed by software

Question 19

Define pixel pitch

Answer 19

The distance between adjacent pixels on the screen

Question 20

What are the important principles when customizing a system to meet needs?

Answer 20

-Meet application requirements
-Balance functionality and budget
-Consider hardware compatibility

Question 21

List the features to consider when customizing a NAS device

Answer 21

-Processor with moderate power
-RAID array
-Appropriately sized chassis
-Media streaming capability

Question 22

Define A VR (virtual reality) headset

Answer 22

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

Question 23

Define a touch screen

Answer 23

an input device that uses a monitor or LCD panel as the backdrop for input options

Question 24

Define viewing angle

Answer 24

The angle at which a monitor becomes difficult to see from the side

Question 25

Define contrast ratio

Answer 25

The contrast between true black and true white on the screen…the higher the contrast ratio the better