| The concept of an acronym is an example of an abstraction.
"WTF" has a meaning that not everyone knows. An icon of xxx has the meaning of search. A real cup is concrete but a picture is abstract. In computers there are many terms that are used that have a similar meaning. Some confusion will occur when a term has a dual meaning like Cell in Excel. Even the name of the software is confusing as Excel has a dual meaning. x = "baseball" This is a common abstraction in code. You can refer to "x" now and it represents the string of characters baseball VBA is an abstraction for Visual Basic for Applications. The name comes from Visual Basic which is a programming language. It's a specific programming language for applications. The term chess is pretty specific to the game of chess, which has rules, pieces, a board, and other attributes associated with it. Your computer can run programs of which Excel is one of them. Excel speaks a specific language of formulas and functions and also can understand VBA aka Macros. But you must tell it exactly what to do in the right order or you're code won't work the way you want it to. |