1️⃣ Scripting - A language whose instructions are written for a runtime environment. Rather than compiling, these instructions are interpreted. All scripting languages are programming languages. 2️⃣ Programming - A language whose instructions require compilation before execution. Not every programming language is a scripting language. 3️⃣ Markup - A language containing easy-to-understand keywords and tags that help format the structure of a web page and its data.