You need an adapter that mounts the card within it and then place that adapter in an available slot or memory reader.
Check the images at above link as an example. Google for one that matches your needs and/or get memory reader that has far more slots or ports in order to retrieve data from all sorts of memory cards.
I just bought a Galaxy s4, and have installed my 8gb SanDisk from my old droid 3. But my galaxy can't see all the pix. . . how do I pull those pix off the tiny card? My computer doesn't have a slot to accomodate the tiny card?