2.1.4 Universal Serial Bus Cables

USB vocabulary

USB (Universal Serial Bus)

A standard for connecting devices, allowing data transfer and power delivery between computers and peripherals.

Peripheral

A device that connects to a computer to add functionality, such as keyboards, mice, or printers.

Host Controller

A component that manages data transfer between the host computer and USB devices, facilitating communication in a USB system.

USB Port

An interface on a computer or device where USB cables can be plugged in for data transfer and power supply.

USB Connector

The physical interface on a USB device that connects to a USB port on a host computer or hub, enabling data transfer and power supply.

USB Type A

a standard connector design used primarily for connecting host devices such as computers to peripherals like keyboards, mice, and printers. It has a flat, rectangular shape and is designed for easy plug-in insertion, supporting various USB specifications. USB Type A ports are commonly found on desktops and laptops, and they can provide power to devices, allowing them to charge while connected.

USB Type B

a square-shaped connector commonly used for connecting printers and other peripheral devices to computers. It supports data transfer and power supply, typically found on the device side of the USB connection.

USB Mini

a smaller connector version primarily used for portable devices such as cameras and mobile phones. It provides both data transfer and power supply capabilities, and was commonly used before the advent of USB Micro connectors.

USB Micro

a smaller and more compact version of USB connectors, used in mobile devices such as smartphones and tablets. It supports faster data transfer and charging compared to previous USB types and is usually characterized by its rounded corners in a trapezoidal shape.

USB-C

a versatile connector type that supports high-speed data transfer, power delivery, and can be plugged in either orientation. It is widely used for modern devices, including laptops, smartphones, and tablets.

Human Interface Device (HID)

A type of device that interacts with humans using input and output interfaces, often including keyboards, mice, and game controllers.

Mass Storage Device

A type of USB device that allows for data storage and retrieval by connecting to a computer. Common examples include USB flash drives and external hard drives.

Audio Device

A type of USB device that transmits audio signals to play sound through speakers or headphones. Examples include USB microphones and headsets.

Printer Device

A type of USB device that receives digital data from a computer to produce hard copies of documents or images. Examples include inkjet and laser printers.

Bandwidth

The maximum rate of data transfer across a network or computer connection, typically measured in bits per second (bps). Bandwidth is crucial for determining the quality and speed of data transmission.

Compatible

A parameter that indicates whether a USB device can work with other devices or systems without any issues, ensuring compatibility in data transfer and functionality.

Reversible

A feature of certain USB connectors that allows them to be inserted into ports in either orientation, making them user-friendly and convenient.

Cable Length

The distance a USB cable can effectively transmit data and power without significant loss of signal quality, typically specified in meters. Longer cable lengths can impact performance.

Power Supply

The source of electrical energy required to operate a USB device, which can be provided through the USB connection or an external adapter.