1. Mobile Devices (15%) Flashcards
Biometrics
the use of a body part to allow access to log in or unlock a mobile device
Liquid crystal display (LCD)
a popular flat-display type found on laptops that uses liquid crystals, which display an image when charged.
- relatively lightweight and don’t consume much power
- use a panel of light- emitting diodes (LEDs) instead, which consume less energy, run cooler, and live longer than fluorescent bulbs
In-plane switching (IPS)
are the shifting patterns of their liquid crystals in viewing devices to overcome viewing angle limitations to creates better viewing angles
- are ideal for those seeking the best color experience, such as graphic designers and video artists
- best choice for someone who wants to mount them vertically, like a lot of programmers do
Twisted nematic (TN)
a common type of liquid-crystal display (LCD) that consists of a substance called a Nematic Liquid crystal that is confined between two plate of polarized glass
- It has somewhat restricted viewing angle and not the best color reproduction
- That makes them a popular choice for competitive gamers.
- They’re not the best choice for high- end video needs, but they are inexpensive, which also makes them good for everyday office use
Vertical alignment (VA)
is a type of LCD technology that’s characterized by vertically aligned pixels
- the best contrast ratios of the three, meaning the difference between the dark and bright colors is the best
- Color reproduction tends to be good but not quite as good as IPS, and this type of monitors do have a bit more lag
Organic light-emitting diode (OLED)
are the image- producing parts of the display and the light source
- can be made flexible, which is not only cool, but it allows it to function in places where other display technologies could never work
- there is no need for a backlight, so power consumption is less than it is in LCD panels
Inverter
provides power to the backlight, and the screen displays the picture
Digitizer/Touch screen
take physical input (such as touch) and turn it into electronic data
Lightning Cable
a small connection cable used with Apple’s mobile devices (and even some accessories) that charges and connects the devices to computer
Serial Interfaces (SCI)
is a device that enables the serial (one bit of a time) exchange of data between a microprocessor and peripherals such as printers, external drives, scanners, or mice
- laptops has two connections: USB & HDMI or Thunderbolt
Near Field Communication (NFC)
is primarily used for mobile commerce and applications like scanning RFID tags, but it could be used for accessories as well
- a very limited range (about 10 centimeters, or 4”)
Hotspot
is a location where people can get Internet access on a wireless network, typically in a public location such as a restaurant or library
Touchpen
also known as a stylus, is a pen- shaped accessory used to write with or as a pointer
- act as an input device on a touch screen, enabling freeform writing, drawing, or clicking through answers to a questionnaire, such as at a medical office
Docking Station
is a device that a laptop can be plugged into that replicates common laptop ports, and may also have full- sized bays for PC desktop expansion cards and storage devices, such as hard drives and optical drives
Port Replicator
will replicate laptop ports but does not usually have expansion bays
Trackpad/drawing pad
The purpose is to allow people to take notes or create drawings that are displayed on a computer screen and stored in a digital format
Third Generation (3G)
was first introduced in 1998, it specified a minimum data download rate of 200 Kbps.
- introduced internet access and video streaming and GSM & CDMA
Second Generation (2G)
became commercially available in 1991
- a maximum data rate of 64 Kbps and with it you could send text messages, read emails, and in theory access the Internet
- introduces text messaging
Fourth Generation (4G)
In 2008 came into the market
- is designed to use IP instead of traditional telephone circuits
- download speeds of 10–20 Mbps and upload speeds of 3–10 Mbps
- improved on streaming, uploads and download speeds
Fifth Generation (5G)
announced in 2016, but it took until late 2018 for cellular providers to start test piloting this
- able to get sustained wireless speeds in excess of 1 Gbps
- three classification: Enhanced Mobile Broadband (eMBB), Ultra- Reliable Low- Latency Communications (URLLC), & Massive Machine Type Communications (mMTC)
- improved on all of the above
Global System for Mobile Communications (GSM)
the most popular, boasting over 1.5 billion users in 210 countries.
- AT&T and T- Mobile used this
Code-Division Multiple Access (CDMA)
which was developed by Qualcomm and available only in the United States
- Sprint (which has since merged with T-Mobile) and Verizon used this
Preferred Roaming List (PRL) updates
is the reference guide the phone uses to connect to the proper cell phone tower when roaming
- updates also normally happen when the primary OS on the phone is updated
- used for CDMA
Global Positioning System (GPS)
is a satellite-based navigation system that provides location and time services
- is accurate within 100 meters
Cellular location services
is designed to do the same thing GPS does, such as provide a user’s location or help navigate a route to a destination
- only accurate within about 1,000 meters
Mobile device management
(MDM)
is software that allows IT to automate control, and secure administrative policies on laptop, smartphones, tablets, or any other device connected to an organization’s network
- a software package residing on a server
mobile application
management (MAM)
allows network administrators to remotely install, delete, encrypt, and wipe corporate applications and related data from mobile devices
- administrators can specify software packages that are allowed to be installed on the mobile device and prohibit others that could pose security risks
Two-factor authentication
electronic authentication method in which a user is granted access to a website or application only after successfully presenting two or more pieces of evidence to authenticate an user
- A common implementation is to require a PIN from a security token, which changes every 30 seconds
USB C
an industry-standard connector with a symmetrical design used for transmitting both data and power on a single cable
Micro USB
is a much smaller, five-pin version of a standard USB connector, with two crimped sides that give it a trapezoid shape
Cellular networks
are used to communicate to internet using a mobile device.
- uses 3G, 4G, and 5G
- enables the transfer of voice, video, and data
IMEI (International Mobile Equipment Identity)
is a unique number for identifying a device on a mobile network
IMSI (International Mobile Subscriber Identity)
a unique number assigned to a SIM card used it identify the mobile user of the mobile network
Corporate Email Configuration
email that is configured, maintained, and paid for by a company that wants the accounts used for business purposes
Corporate Application Mobile Device
any application that a business can customize to fit its needs
