In many software applications, it is common to have a File menu located in the upper left-hand corner of your screen. Under the File menu, it is also common to have both 'Save' and 'Save As' as options. Both of these options are used to not only tell the computer WHERE (Save in) to save your information, but also to tell the computer what NAME (File name) you want to call your information.
Save will save the current file under the same name in the same location. (Meaning it saves the new changes over the original file you opened.) If a file is newly created then Save will open a window allowing you to name the file and choose a save location. Otherwise, it's a simple save of the current information over the old, in the same place with the same name.On the other hand, Save As will always bring up the Save As window allowing you to change the file name and its save location. Assuming you make a change to name or location, the original file will still be intact in its original location after the Save As.
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