Brain › Science & TechnologyHow are hard drives and floppy disks read?LaserBeam of Nuclear RadiationMagneticallySensorAnswerThe correct answer is C) Magnetically.More Science & Technology questionsHow are CDs and DVDs read?Why is Blue Ray better than Red Ray/Laser?What is the big green board in the computer called?What are the little green boards in the computer called?What is the hottest part of the computer?What is the long term memory of the computer?Play Brain · Practice