http://office.microsoft.com/en-us/help/HA100310711033.aspx Macros automate frequently-used tasks; many are created with VBA (Visual Basic for Applications (VBA): A macro-language version of Microsoft Visual Basic that is used to program Microsoft Windows-based applications and is included with several Microsoft programs.) and are written by software developers. However, some macros pose a potential security risk. A person with malicious intent can introduce a destructive macro, in a document or file, which can spread a virus (virus: A computer program or macro that "infects" computer files by inserting copies of itself into those files. When the infected file is loaded into memory, the virus can infect other files. Viruses often have harmful side effects.) on your computer.
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The program will be able to save and run macros. Macros are short programs in applications to do set tasks. They can sometimes be susceptible to viruses, which is why sometimes applications are not macro-enabled. If the user trusts the macro then they can enable the macros and they will work.
The macro content.
macro means big or large...
The answer will vary depending on the development environment being used. Some development environments e.g. Microsofts Visual Studio, allow developers to write macros that will write code for them. I have a 3000 line macro that I use to build class libraries. Each time the macro is run it will write 1500 lines of code so is this code I have written after all, I wrote the macro that wrote the code?
The big picture is what best describes a Macro View.
macro-The climate of a large geographic area. micro- is a local atmospheric zone where the climate differs from the surrounding area