Computer Storage Devices Quiz

Which component stores data when a computer is turned off?

What is the storage capacity of RAM typically measured in?

How is data stored on the metal platters inside a hard disk drive (HDD)?

What is the purpose of the reading heads inside a hard disk drive (HDD)?

What happens to the data stored in a hard disk drive (HDD) when the power is off?

Data Storage in Computers

Non-volatile storage: Hard Disk Drives (HDD) store data when a computer is turned off, retaining information without the need for power.

RAM Storage Capacity

Measurement units: The storage capacity of RAM (Random Access Memory) is typically measured in Gigabytes (GB) or Megabytes (MB), reflecting the amount of data it can temporarily hold while powered on.

Data Storage in Hard Disk Drives

Mechanism of storage: Data on the metal platters inside an HDD is stored magnetically, utilizing magnetic fields to represent binary data (0s and 1s) on the disk surface.

Function of Reading Heads

Data retrieval: The reading heads in an HDD move above the spinning platters to read or write data by detecting changes in the magnetic fields stored on the disk's surface.

Data Retention in HDDs

Data persistence: When power is turned off, the data stored on an HDD remains intact and accessible upon re-powering the device, unlike volatile memory such as RAM, which loses its data when unpowered.

Test your knowledge on computer storage devices with this quiz! Learn about the differences between RAM and HDD, understand storage capacity units, and discover how data is stored on metal platters. Challenge yourself with questions on magnetic particles and more.