What are SD cards for?

[justrelaxing]

I have been seeing posts on memory. My internal memory is about 27MB internal, What do most others have?

Also Looks like SD total space is 7.4 GB, and I have 6.99 GB avail.

What do most people put onto the SD card? I am new at this and trying to figure how to keep my phone running the best it can.

 

[AdrianC14]

What is on the SD card is your photos, videos, music, and some apps put files on the SD card. I have 64MB of internal phone storage left.