Pseudo-coordination

The coordinators and and or are sometimes used when no real coordination is taking place:

           I’ll be there when I’m good and ready.

Here, and does not coordinate good with ready. If it did, the sentence
would mean something like: 

           I’ll be there when I’m good and when I’m ready.

 Instead, it means

           I’ll be there when I’m fully/completely ready.

This use of and without any coordinating role is called pseudocoordination.  Further examples of pseudo-coordination include: 

       Please try and come early.
       (= Please try to come early.)

       Any more complaints and I’m leaving.
       (= If I receive any more complaints, I will leave.)

       Do that again and I’ll report you.
       (= If you do that again, I will report you.)

When it acts as a coordinator, the conjunction or links items which are to be considered as alternatives:

       Would you like tea or coffee?

       You can fly business class or economy class.

In the following example, however, the items linked by or are not alternatives:

        The software is supplied with several useful ‘wizards’ or templates.

Here, templates is used to clarify the specialist computer term wizards, so this is a type of apposition