OCR Computer Science GCSE - Secondary Storage quickfire

What does the term "volatile" mean in the context of computer memory

• Quick to anger

• The contents of memory remain on power loss

• The contents of memory are erased on power loss

• The contents of memory are impossible to erase

Identify the secondary storage devices - click all that apply

• Hard Disk Drive

• USB

• Solid State Drive

• ROM

• Blu-Ray

What units are used to measure the data capacity of storage devices?

• Bytes

• Bits

• FLOPS

• MHz

Which of the following words describes technology which uses lasers to store and retrieve data?

• Optical

• Magnetic

• Luminal

• Solid State

How is data stored on a HARD DISK DRIVE?

• a magnetic charge is applies to sections of a spinning disc, which either attracts or repels a read head, corresponding to 1s and 0s

• A laser light scans the surface of the disc and is either reflected or absorbed by pits on the surface, corresponding to 1s and 0s

• Carbon nanotubes are arranged in a preconfigured alignment either up/down and left/right, corresponding to 1s ands 0s

• A little goblin inside the drive draws prictures and then converts them to 1s and 0s somehow

What advantage does FLASH memory have over magnetic storage?

• It's faster

• It's cheaper

• It usually has a higher storage capacity

• YOU MUST CONSTRUCT ADDITIONAL PYLONS

What shape was in the bottom right corner

• red cross

• yellow circle

• yellow square

• indigo circle

True or false: Optical storage is non-volatile

• True

• False

True or false - Solid state drives often use FLASH memory

• True

• False

What does EEPROM stand for?

• Electrically Erasable Programmable Read Only Memory

• Elephants Encapsulate Potentially Riotous Obligatory Meditation

• Electronic Enhanced Programmable Read Only Memory

• Electrically Enhanced Programmable Read Only Memory