What HTML is
Hypertext Markup Language. The lingua franca for publishing hypertext on the World Wide Web. HTML is a nonproprietary format based on SGML. It can be created and processed in a wide range of software programs, from simple plain text editors to WYSIWYG programs to sophisticated authoring tools.
HTML is a mark-up language (versus a programming language) that uses tags to structure text into headings, paragraphs, lists, and links (like those seen on the NetLingo.com HTML Code Cheat Sheet). It tells a Web browser how to display text and images. You can see a Web page's HTML code if you select "view source" from the View menu in your Web browser.
A question that often comes up is how to make HTML code be visible on a page and not execute? You do this by using the ASCII code equivalents of the "less than" and "greater than" symbols (this way it is interpreted as just text and not real HTML code).
The meaning of Object-oriented programming (OOP)
A type of programming that combines data structures with functions to create reusable objects. It works something like this: Programmers can create modules that do not need to be changed when a new type of object is added; instead, one can simply create a new object that inherits many of its features from existing objects. This inheritance relationship between objects makes object-oriented programs easier to modify than procedural programming techniques.
The most popular object-oriented programming languages are Java and C++. There is also UML (Unified Modeling Language) which is the industry-standard language for specifying, visualizing, constructing, and documenting the artifacts of software systems. It simplifies the complex process of software design, making a "blueprint" for construction.
"Object-oriented" can also be used to describe a system that primarily deals with different types of objects, where the actions you take depend on what type of object you are manipulating. For example, an object-oriented graphics program might enable you to draw many types of objects, such as circles, rectangles, and triangles. Applying the same action to each of these objects, however, would produce different results. If the action is "Make 3-D," for instance, the result would be a sphere, a box, and a pyramid, respectively.
Object-oriented graphics are also called vector graphics.
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