Mobile Devices: 1.2, 1.3, 1.4 Flashcards
Any device that makes it portable and easy to use
Mobile Device
Can process 2 or more contact points simultaneously
Multi-touch screen
Individual point on a screen inside of a display
Pixel (Picture Element)
Any touchscreen that works by seeing the distortion in an electrostatic field
Capacitive Touch Screen
Uses liquid crystal where the properties can change with the application of voltage
Liquid Crystal Display (LCD)
Uses crystals that rotate to be able to deliver color
In-Plane Switching (IPS)
Contains crystals that twist or untwist in response to the voltage being applied or removed
Twisted Nematic (TN)
Crystals are tilted to be able to deliver color
has a contrast ratio of two to three times better than a standard IPS display
Vertical Alignment (VA)
Lamp that sits behind display and lights up the liquid crystal display to show the colors and images properly on the screen
Cold Cathode Fluorescent Lamp (CCFL)
Newer form of light that uses direct current
Light Emitting Diode (LED)
Each pixel has its own separate LED that provides the light
Organic LED (OLED)
Layer sandwiched between a layer of protective glass and the display panel inside of a touchscreen display
Digitizer
Combination device that uses hardware and software to measure the velocity, rotation, and shaking of a mobile device
Accelerometer
An improved version of the basic accelerometer:
detects pitch, roll, and yaw
perform action and stabilizes images
Gyroscope
Device that can be used to manipulate the cursor on the screen
Track Pad
Large format touch device attached as a peripheral to a laptop, smartphone, or tablet
Drawing Pad
Any device to record audio or capture voice when making a phone call
Microphone
Allows to hear things that are coming out from devices, such as music or videos
Speaker
Combines both the microphone and speaker into one device
Headset
Provides the ability to capture a live image in a still format
Digital Camera
Wirelessly connectivity on smaller devices is slower than it is on larger devices
Larger antennas pick up signals with more strength and faster speeds
Wifi (Wireless Network)
Network that allows to connect to the internet using cellular radio inside the handset and connect to a network service providers
Cellular
Cellular technology that takes the voice during a call and converts it into a digital format
Global System for Mobile Communication (GSM)
Cellular technology uses code division to split up the channel and better than GSM
Code Division Multiple Access (CDMA)
Used as short range point to point network connection between a mobile device and an accessory
Bluetooth
Contains all the information about different cellular towers
Preferred Roaming List (PRL)
Proprietary cable that is only used by Apple devices
Lightning Cable
Allows a device to receive and send information in the NFC format
Near Field Communication (NFC)
Modern version of USB that operates at USB 3.0 Speeds and can provide data
USB-C
D Shaped connector with 9 pins that is used to connect external serial devices like modems
DB9 Cable
Device that allows to connect to a device and get info from it
Universal Asynchronous Receiver-Transmitter (UART)
makes life easier by providing easier access to all of the ports
Port Replicator
Advanced type of port replicator that provides all the capabilities and features of a laptop
Docking Station
