Does soft ware need to be added to my computer for

NO but it will have to sync with your camera first after that it will see your memory card as another hard drive.

if you are connecting the memory card directly to the computer using a card reader then you do not need any softwares, it would just be recognised as a removeable disk like a pen drive

but if you are trying to read it from the camera then you might want to enable the connect as a DSC mode and also do check if any drivers are need from the camera's official site