We will discuss important terms and concepts related to Web Development here.
Web Browser (commonly referred to as a browser)
A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web.
Examples include Firefox, Chrome, IE, Safari etc.
HTML 5 Video
Before HTML5, a video could only be played in a browser with a plug-in (like flash). The HTML5 <video> element specifies a standard way to embed a video in a web page.
YouTube had dropped support for flash and has made HTML5 Video as the default. Even Adobe had stopped development on Mobile browser flash to focus on HTML 5, years back.