Mobile Display Types Flashcards

Question

Speakers | 1

Answer 1

- Allows you to hear things that are coming out from devices, such as music or videos

Answer 2

Combines both the microphone and speaker into one device

Answer 3

Provides the ability to capture a live image in a still format

Answer 4

Used to record video

Answer 5

**Wi-Fi Overview:** - Wi-Fi Types: Includes standards like 802.11a, b, g, n, ac, and ax, each offering varying speeds and capabilities. **Requirements for Wi-Fi:** - Wireless Radio: A wireless card or radio in your device. - Wireless Access Point (WAP): A device to transmit and manage the wireless signal. **Key Factors Affecting Wi-Fi Performance:** - Speed Determination: The operating speed is limited by the slower device, whether it’s the wireless card or the WAP. - Even if one supports faster speeds, the connection operates at the slower device’s capability. **Device Size and Antenna:** - Smaller devices (e.g., smartphones) have smaller antennas, leading to slower speeds compared to larger devices (e.g., laptops or desktops). ** Enabling/Disabling Wi-Fi:** - Settings: Wi-Fi can be turned on or off via the device’s settings menu or quick settings panel.

Answer 6

**Cellular Networks Overview:** - Definition: A cellular network enables devices to connect to the Internet and communicate through cellular radio, using a network service provider's infrastructure. **Key Features:** **Cellular Technologies:** - Operate on GSM (Global System for Mobile Communications) or CDMA (Code Division Multiple Access). - Differences between GSM and CDMA were significant before 3G, but with 3G, 4G, and 5G, the gap has largely disappeared. **Controlling Cellular Connectivity:** - Enable/Disable Cellular: Access the settings menu or quick settings (via a swipe gesture) to toggle cellular connectivity. - Airplane Mode: Disables all cellular connections, along with Wi-Fi and Bluetooth, for compliance with flight regulations or to conserve battery.

Answer 7

- Global System For Mobile Communication - Cellular technology that takes the voice during a call and converts it into a digital format - In US T-Mobile and At&t rely on GSM - most places in the world reliess on - More widely suppored acorss globe - Uses SIM card

Answer 8

- Code-Division Multiple Access - Cellular technology that uses code division to split up the channel - Verizon rely on CDMA - Japan or south Korea - More powerful and flexible than GSM - Doesnt use SIM cards uses electronic code (Issues with changing provider, locked to phone)- Can useelectronic SIM to get around this. ● W-CDMA (Wideband CDMA) ● UMTS (Universal Mobile Telecommunications System)

Answer 9

Preferred Roaming List - Can update PRL in setting or using phones numeric keys - Contains all the information about different cellular towers - Restrictions vary from model to model and depends on the device’s country of origin

Answer 10

**Bluetooth Overview:** - Definition: Bluetooth is a short-range, point-to-point wireless network connection used to link mobile devices with accessories like headphones, speakers, or smartwatches. **Steps to Pair and Connect:** - Enable Pairing Mode: Turn on Bluetooth and activate pairing mode on both devices. - Find and Select Device: Locate the accessory in the device's Bluetooth settings. - PIN Validation (if required): Some devices need a PIN code for pairing. If unsure, consult the manufacturer’s manual. Devices with easy pairing mode may automatically exchange passcodes. - Testing the Connection: Once paired, test functionality (e.g., play music, test buttons, or confirm accessory operation) to ensure proper connectivity.

Answer 11

Near-Field Communication - Allows a device to receive and send information in the NFC format - The pairing process can be done automatically by using NFC connection - Most modern devices have NFC transceiver in them - Allows for the transmision of data over short distances (Normally 2-4 inches, can be as high as 8 inches) - Most of the time is used for contactless pay (Apple pay) - can be disabled in settings - is not only used for contactless pay - can also be used to connect airpods

Answer 12

- a physical location where users can access the internet wirelessly through a Wi-Fi network, typically provided by a router connected to an internet service provider (ISP); essentially, a publicly accessible area with wireless internet access - A mobile device, like a smartphone, can also act as a "personal hotspot" by creating a wireless network that other devices can connect to using its cellular data connection.

Answer 13

- Created by apple for use on Iphone and Ipads - Relies on close-sourced code (only used for apple)

Answer 14

- Operating system sponsored and created by Google but used by many different providers - Offers an open-source code base (offer ability to change look and feel of software) - widely available on smartphones and tablets

Answer 15

Universal Asynchronous Receiver-Transmitter - Device that allows to connect to a device and get information from it - This is a serial port - software interface that imitates port

Answer 16

- Lightning Cable - USC-C - USB 2.0 Micro B - USB 2.0 Mini B - Serial Cables

Answer 17

- a device that provides a laptop with access to multiple standard computer ports, like USB, HDMI, and Ethernet, etc. by connecting to a single expansion port on the laptop, essentially acting as a hub to expand its connectivity options; it's similar to a docking station but often uses a more universal connection method like USB-C, allowing it to work with a wider range of laptops. - replicates ports (exact features in laptop) - In one place where you can easily connect and disconnect things - makes life easier by easy access to all ports - Single connection to laptop - Port mirror

Answer 18

- Advanced type of port replicator that provides all the capabilities and features of a laptop - Also gives new features (i.e. external HDs) - Additional ports