What is Dynamic Adaptive Streaming over HTTP (DASH)?

Dynamic Adaptive Streaming over HTTP (DASH) is like having a playlist that changes depending on how fast your internet is working.

Imagine you're watching a video on your tablet. If your internet is strong, the video plays in high quality, it's like watching a bright, clear picture with all the colors. But if your internet slows down, the video might switch to a lower quality, like when you draw a picture with fewer colors or less detail. DASH makes this switching happen smoothly so you don’t notice any big changes.

DASH works by breaking the video into small pieces, called segments, and putting them online. Your device downloads these segments one after another. If your internet is fast, it grabs bigger segments, like getting a full page of a book at once. If it's slow, it grabs smaller ones, like reading one line at a time.

This means you can watch videos without them freezing or stopping, even if your internet speed changes while you're watching! It’s like having a smart friend who knows exactly how much of the video to give you at any moment.