A markup language is a computer language that defines elements within a document using tags. They are less difficult to read. Rather than executing or performing an action, these languages are designed to generate a structure, identify data, or convey data.
Meanwhile, a programming language is a set of commands and syntax that may be used to develop software applications. These programs are capable of completing a specific task.
Another distinction between markup and programming languages is that markup is interpreted by the browser, whereas programming is compiled by a compiler.
Markup languages include HTML, XML, and XHTML, to name a few. Programming languages such as C, C++, Java, Python, and Assembly are just a few examples.