Optical and magnetic storage

Computing

Optical storage uses light to store data on discs. What device does it use to mark the discs?

The marks and gaps on an optical storage disc are called...

Magnetic storage also uses discs to store data. What are the discs inside a hard-drive called?

Magnetic hard-drives use moving parts to store and read data. Which parts of a hard-drive move when it is operating? (Select all that apply)

When comparing storage devices you should be able to comment on the cost per GB of each type. Which type of storage is the most expensive?

Which type of storage typically has the largest capacity? (Can hold the most data)

Which features of RAM make it unsuitable for long term storage? (Select all that apply)

It can only be read from and not written to

What features of ROM make it unsuitable for long term storage? (Select all that apply)

What are the three categories of secondary storage?

Solid state drives are fast to read and write and take less energy to run than other devices. Which feature allows them to do this?

Which device has faster read and write speeds?