DVDlejátszó

A DVDlejátszó, or DVD player, is an electronic device used to play back optical media in the form of DVDs. These discs store audio and video content, and the player decodes this information and outputs it to a display, typically a television, and an audio system. Early DVD players were introduced in the mid-1990s, revolutionizing home entertainment by offering superior picture and sound quality compared to VHS tapes.

DVDlejátszók typically feature a tray that accepts the DVD disc. Once inserted, the disc spins at high speeds while a laser beam reads the data encoded on its surface. This data is then processed by internal circuitry, which converts it into analog or digital signals that can be understood by a television and sound system. Most modern DVD players connect to televisions via HDMI cables, though older models might use composite or component video connections. They also often include audio outputs like optical or coaxial digital audio, or analog stereo.

Beyond playing standard DVDs, many DVDlejátszók also support other disc formats, such as CDs, and some advanced models can play Blu-ray discs or even stream content from the internet. Features can vary widely, from basic playback capabilities to advanced functions like upscaling to higher resolutions, support for surround sound formats, and parental controls. The widespread adoption of DVDlejátszók significantly contributed to the decline of VHS and paved the way for subsequent optical disc formats like Blu-ray.