Most modern laptops and all-in-one (AIO) computers come with integrated webcams. However, with very few exceptions, the quality is almost always absolute rubbish. Upgrading to an external webcam is almost always a good idea, even if you’re just starting out as a streamer. External webcams have better lenses and electronics and typically offer better resolutions. Hence, with a half-decent aftermarket webcam, you can expect markedly better photos, videos, and audio, compared to any built-in webcam in laptop or desktop computers.