Transferring photos to external drive
I would like to remove half of the photos on my hard disk (currently in Aperture) and transfer them to an external hard drive of 1 terabyte. I would also like to be able to access them again from the had drive, return them to the hard drive and EDIT them. How do I do this?
MacBook Pro, Mac OS X (10.4.9), Operating system is 10.9.4