Which device is designed specifically for video streaming and conferencing?

A webcam is designed specifically for video streaming and conferencing because it is equipped to capture video in real-time and transmit it over the internet. This function is crucial for formats such as video calls, online meetings, and live broadcasts. Webcams offer video resolution capabilities suited for streaming and typically feature integrated microphones for capturing audio, making them a comprehensive solution for video conferencing environments.

While microphones, digital cameras, and speakers play critical roles in the multimedia experience, they do not serve the specific function of video capture necessary for streaming. Microphones capture audio but do not handle video. Digital cameras can produce high-quality images and videos, but they are not optimized for continuous video streaming without additional tools or setups. Speakers provide audio output but are not related to video input at all. Thus, the webcam is the device that uniquely combines both functionalities tailored for video communication.