Adapter

An adapter is a device, component, or system designed to modify or make compatible two or more existing entities, often physical or digital. This modification enables interoperability or connectivity where it wouldn't otherwise exist. Adapters facilitate a smooth transition or interaction by changing the form, signal, voltage, size, or functionality to match different standards, specifications, or requirements. They bridge gaps between dissimilar technologies or designs, allowing different elements to function together. The term encompasses a broad range, from simple physical connectors to complex software applications.

Adapter meaning with examples

• When travelling internationally, a travel adapter is essential to connect your electronic devices to power outlets that use a different plug type. This small device ensures that your devices can receive power and charge without any electrical damage. It acts as a bridge between your device's plug and the foreign outlet. Without an adapter, your devices will be unusable, leaving you disconnected in a foreign environment.
• To connect your older monitor with a VGA connection to your newer computer with an HDMI output, you will need a VGA to HDMI adapter. This adapter will convert the digital signal from the HDMI port to the analog signal that the VGA monitor accepts. This allows you to continue using your older equipment without having to purchase new hardware. The adapter allows the two devices to 'speak' to each other.
• In software development, an adapter is a design pattern that allows two incompatible interfaces to work together. For instance, it could allow a legacy database to interact with a new application. The adapter takes the calls from one interface and converts them into calls understandable by the other. This is beneficial when integrating with existing infrastructure.
• A camera lens adapter lets you mount lenses made for a specific camera mount (e.g., Canon EF) onto a camera body with a different mount (e.g., Sony E-mount). This can expand the lenses available for your camera. The adapter ensures the physical connection, maintaining correct focal distance and potential exposure or autofocus control, expanding the functionality of a system.