Auxiliary memory or secondary memory includes as
1. Optical discs like DVD, CD and Blu-ray disk
2. magnetic disks like memory sticks, floppy disks and hard disk drive
3. solid-state disks like a thumb drive, pen and flash
4. electric disks like memory sticks, floppy disks and hard disk drive
5. mechanical disks like DVD, CD and Blu-ray disks
Select the correct answer using the codes given below.
1
1, 2 and 3
2
1 and 4
3
2 and 4
4
3 and 5
5
None of the above