3. Floppy disks were once the usual medium for distributing software adopted by software houses and developers.

a) State three reasons why the use of floppy disks has decreased. (3)

b) Describe one occasion where it would still be sensible to use a floppy disk for software distribution. (2)

c) State two ways, other than by floppy disk, in which software can be distributed. Give an example, with reasons, of when each one might be used. (6)