1.3 Connecting Mobile Devices

Question 1

Connecting mobile devices

Answer 1

phones and tablets have different ways to connect
wired and wireless connectivity
used for synchronization, connectivity, backup and identifications

Question 2

USB
stands for?
designed for?

Answer 2

Universal Serial Bus
High speed wired communication
used for charging and data transfers

Micro-USB
smaller usb connection
more common worldwide now

Older devices might use mini-usb which is slightly larger

Question 3

USB-C

Answer 3

24-pin double-sided USB connector
-used for both hosts and devices

Acts as a USB 2.0/3.0/3.1/4 connection

Can transmit other signals(DisplayPort, HDMI, Thunderbolt)

Question 4

Lightning

Answer 4

Apple proprietary
-8-pin digital signals
-iphone and ipad devices

advantages over micro-usb
-higher power output for phones and tablets
-can be inserted either way
-simpler design

Question 5

Serial interfaces

Answer 5

DB-9
(sometimes called DE-9)

Commonly used for RS-232 signals
-recommended standard 232
-industry standard since 1969

Serial communications standard
-traditionally used for modem connections

Now used as configuration port
-switches, routers, firewalls, etc
-use a USB to DB-9 converter cable

Question 6

NFC

Answer 6

Near Field Communication
-send small amounts of data wirelessly over a limited area

Build into your phone
-Payment systems, transportation, in person information exchange

Access token, identity card
-short range with encryption support

Question 7

Bluetooth

Answer 7

High speed communication over short distances
-PAN (Personal Area Network)

Connects our mobile devices
-smartphones
-tethering
-headsets and headphones
-health monitors
-automobile and phone integration
-smartwatches
-external speakers

Question 8

Hotspot

Answer 8

Turn your phone into a wireless hotspot
-your own personal wireless router
-extend the cellular data network to all your devices

Dependant on phone type and provider
-may require additional charges and data costs