Mobile Devices - Mobile Devices Flashcards
What are the different mobile device types?
Tablet
Phablet
Smart Phone
Wearables
Webcam
E-reader
What type of screen do tablets use and what does it mean?
Capacitive touch screens. Smart phones use them too but that likely won’t be on the exam anyway since A+ certification is always a few years behind. Just like my ex’s intelligence. Oh, and it means it recognizes fingertip input.
What is E Ink?
E Ink is a special technology that creates a high-contrast, black and white display. Even though E Ink screens display only grayscale, they are great for e-readers because they consume much less power than LCD screens and their output can be seen even in direct sunlight.
What type of connector is #1 in the USB Connector Chart?
USB Type A (Standard A USB)
What type of connector is #2 in the USB Connector Chart?
USB Type B (Standard B USB)
What type of connector is #3 in the USB Connector Chart?
Mini USB 4-pin (USB Mini B)
What type of connector is #4 in the USB Connector Chart?
Mini USB 5-pin (USB Mini B)
What type of connector is #5 in the USB Connector Chart?
Micro USB (USB Micro-B)
What type of connector is #6 in the USB Connector Chart?
USB 3.0 Type A
What type of connector is #7 in the USB Connector Chart?
USB 3.0 Type B
What type of connector is #8 in the USB Connector Chart?
USB 3.0 Micro B
What type of connector is #9 in the USB Connector Chart?
USB 3.1 Type C
What is USB 2.0 used to connect?
Keyboards, mice, printers, flash drives, etc
What advantages did USB 3.0 introduce over 2.0?
It’s faster, and it introduced new B-type connectors
What did USB-C introduce?
Newer technology with different connectivity. It is used for all external devices including displays and Ethernet adapters.
What is the USB A connector generally used to plug into?
The mobile device
What is the USB B connector generally used to plug into?
The external device
What is the Standard USB B connector and what is it used to connect to?
It’s an older connector mainly used to connect to external hard drives and printers
What is the Mini USB B connector and what is it used to connect to?
It’s a smaller version of USB connector used for connections as well as charging external devices.
What is the Micro USB B connector and what is it used to connect to?
Same as the Mini USB B but smaller. It’s used for connections as well as charging external devices.
What is the Standard USB 3.0 B connector and what is it used for?
it’s a dual connection (top and bottom), allowing for higher transfer speeds.
What is the Micro USB 3.0 type B and what is it used for?
It’s a dual connection (side-by-side). It has the same connectivity as Standard 3.0.
What devices use serial interfaces?
Computers, routers, and switches
What does a serial interface allow devices to do?
Communicate via a stream of binary digits.
There may be control signals embedded in the stream to mark the beginning or end of characters or to enable parity.
What type of connector is a serial connector?
A 9-pin D connector, though some are proprietary
What is NFC?
Near Field Communications
What is NFC used for and how does it work?
It’s a short range wireless technology that’s mostly used for tap and pay credit cards as well as transferring data between mobile devices.
What is the range of NFC?
About an inch
What is Bluetooth?
A short range, low power wireless technology.
What range does Bluetooth have?
About 10 meters
What is Bluetooth used to connect to?
Earbuds, headphones, speakers, printers
What has to be done before two devices can connect to each other via Bluetooth?
They have to be paired
What is a HotSpot?
Allows the user to turn a smartphone into a WiFi connection that uses the cellular data to connect to the internet.
