Multiple choice

Typically, which technology is employed as a storage mechanism by hard disk drives?

  1. Laser

  2. Magnetic

  3. Light

  4. Chemical
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hard disk drives store data using magnetic technology - tiny magnetic domains on spinning platers represent binary data. Read/write heads change or detect these magnetic patterns. This is different from optical storage (laser, like CDs/DVDs) or solid-state storage (electrical charge).

Keep practicing — related questions