1.2 - Connecting Mobile Devices

What does USB stand for?

Universal Serial Bus.

What are the main uses of USB on mobile devices?

Charging, transferring data, synchronizing data, and backing up information.

What are the four USB connector types covered in these notes?

Mini-USB, Micro-USB, USB Type-A, and USB-C.

Which USB connector types were commonly used on older mobile devices?

Mini-USB and Micro-USB.

What is USB Type-A commonly used for?

Connecting a USB cable to a desktop or laptop computer.

What is USB-C?

A modern, reversible USB connector used for charging, data transfer, and other signals.

How many pins does a USB-C connector have?

24 pins.

What does it mean that USB-C is reversible?

It can be inserted in either orientation.

Can USB-C carry video signals as well as data?

Yes. Depending on the device and cable, it can support technologies such as DisplayPort, HDMI, and Thunderbolt.

Does every USB-C port support the same features and speeds?

No. Supported features and speeds depend on the device, port, and cable.

What is the Lightning connector?

A proprietary Apple connector commonly used on older iPhones and iPads.

How many pins does a Lightning connector have?

8 pins.

Is the Lightning connector reversible?

Yes. It can be inserted in either orientation.

What are two similarities between Lightning and USB-C?

Both are reversible and can support charging and data transfer.

Why might someone need multiple cables for mobile devices?

Different devices may use different connector types.

What does NFC stand for?

Near Field Communication.

What type of communication does NFC use?

Wireless communication over a very short distance.

What are three common uses of NFC?

Contactless payments, access control, and identification or information transfer.

How can NFC be used for access control?

A compatible phone or smartwatch can act as an access credential when presented to an NFC sensor.

Which mobile devices may contain NFC?

Smartphones, tablets, and smartwatches.

What is Bluetooth?

A short-range wireless communication technology used to connect personal devices.

Name four devices that commonly use Bluetooth.

Wireless headphones, headsets, keyboards, and mice.

What does PAN stand for?

Personal Area Network.

What is a Personal Area Network (PAN)?

A network connecting personal devices over a short distance.

Which technology is commonly used to create a PAN?

Bluetooth.

What is a common use of Bluetooth on mobile devices?

Connecting wireless accessories such as headphones, keyboards, and mice.

What is a mobile hotspot?

A feature that shares a smartphone's internet connection with other devices.

How do devices commonly connect to a mobile hotspot?

Through Wi-Fi.

What is tethering?

Sharing a mobile phone's internet connection with another device.

What devices can receive internet access through tethering?

Compatible devices such as laptops, tablets, or other phones.

What is the difference between a mobile hotspot and tethering?

A hotspot commonly shares a phone's connection with multiple devices over Wi-Fi; tethering is the broader term for sharing the connection and may be wired or wireless.

Can tethering use a wired connection?

Yes, if the phone and connected device support it.

What can affect the availability of mobile hotspot functionality?

The phone's capabilities, software, and mobile service provider or plan.

What should you check if you want to use a mobile hotspot?

Whether the phone supports the feature and whether the mobile provider or plan allows it.

Which technology is commonly used for contactless payments?

NFC.

Which technology is commonly used to connect wireless headphones to a phone?

Bluetooth.

Which connector has 24 pins and is reversible?

USB-C.

Which connector has 8 pins and is associated with older Apple devices?

Lightning.

Which technology can allow a smartphone to act as an access card?

NFC.

Which technology commonly connects personal devices over a short distance?

Bluetooth.

What is the main purpose of mobile device synchronization?

To keep data consistent between devices or between a device and a computer.

Why might you connect a phone to a computer using USB?

To charge the phone, transfer or synchronize data, or back up information.