WorksheetsOCR Computer Science GCSE - Secondary Storage quickfire
Total questions: 10
Worksheet time: 5mins
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
