TestOut LabSim 12.4.4

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Rio Salado Community College *

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105

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Computer Science

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Nov 24, 2024

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pdf

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Uploaded by frew0923

4/8/23, 8:00 PM TestOut LabSim https://labsimapp.testout.com/v6_0_544/index.html/productviewer/1193/12.4.4/3b36a3b1-3078-444c-9122-3ab316a269ac 1/2 12.4.4 Mobile Connection Facts This lesson covers mobile connections. Mobile Connections Most mobile devices share similar design and functionality traits. Most allow for external connectivity via wired and wireless technologies. Many of those traits are described in the following table. Feature Description Universal Serial Bus Universal Serial Bus (USB) is the most predominant connection type and the most versatile for mobile devices. USB is used to connect most external devices to a PC or tablet. There are di±erent versions of USB: USB v2.0—used to connect keyboards, mice, printers, ²ash drives etc. USB v3.0—the same as v2.0, but faster. It introduced new type B connectors. USB-C—a newer technology with di±erent connectivity. It is used for all external devices including displays and Ethernet adapters. USB has three connection types: The A connector is generally used to plug into the mobile device. The B connector is generally used to plug into the external device. It includes: Standard—older connector used mainly to connect to external hard drives and printers. MiniUSB—smaller version of USB connector used for connections as well as charging external devices. MicroUSB—same as MiniUSB, but smaller. Standard 3.0—dual connection, top and bottom, allowing for higher throughput on capable devices. MicroUSB 3.0—dual connection, side-to-side. It has the same connectivity as Standard 3.0. The C connector is used for connecting external devices including displays and Ethernet adapters. It may use type A or C to plug into mobile devices. It uses type C to plug into external devices. Serial interfaces Devices that use a serial interface include computers, routers, and switches. Serial allows devices to 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. Many serial connectors are a 9 pin D connector. However, some use a proprietary connector that has a speci³c use.

4/8/23, 8:00 PM TestOut LabSim https://labsimapp.testout.com/v6_0_544/index.html/productviewer/1193/12.4.4/3b36a3b1-3078-444c-9122-3ab316a269ac 2/2 While no longer widely used, serial communication was used to connect external serial devices to computers. These devices included printers, modems, scanners, and other serial devices. Near-³eld communications NFC is a newer wireless technology. It is mostly used with credit cards allowing the user to tap the credit card rather than swipe it or insert it into the chip reader. It can also be used to transfer data between mobile devices. NFC's wireless range is less than one inch and uses very little power. Bluetooth Bluetooth is a low-power, short-distance wireless technology. It supports a 10-meter radius for connectivity and is usually used for multimedia. Often users use Bluetooth with earbuds, headphones, and speakers. Bluetooth is also used to connect printers wirelessly. Bluetooth requires devices be paired before they can be used. Hotspot Many smartphones can enable a hotspot feature. This feature allows the user to turn the smartphone into a WiFi hotspot. The smartphone uses its cellular connection to the internet and provides a WiFi host allowing WiFi enabled devices to connect and use the smartphone's internet connection. This is useful for any mobile device that does not have direct access to the internet. Several cellular providers o±er devices speci³cally designed to do this; however, providing a hotspot is their only function. These devices generally sell for a fraction the cost of a mobile phone. Copyright © 2023 TestOut Corporation All rights reserved.

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