magnolia tree in bloom

Magnolia tree flower PaintingChaszmyrJul 14, 02:16 PMCan anyone tell me the purpose of dual drive slots nowadays? I can see the use for them (and had computers with) when they were limited to one function, i.e. DVD-ROM for one and a CD-RW for the other but now that everything can happen in one drive with speed not being an issue, is it really nececcary to have two? There used to be some software