Storage Devices Flashcards
What are storage devices?
Any device that stores non volatile data
What is a HDD?
Its use, advantages and limitations?
Stores volatile data and acts as memory.
Advantages: More capacity than RAM
- cheaper than ram per gb
-store data even when switched off
Limitations:
Damaged easily and slower than ram
What is a SSD?
Its use, advantages and limitations?
Solid state drives. Use flash memory to store data with no moving parts
Advantages:
-faster than HDDs
-Silent processing
Limitations:
-more expensive than SSDs
-less storage space
What is a optical media?
Its use, advantages and limitations?
Storage devices like CDs or DvDs
Used for storage and archives
Advantages:
-durable
-portable
-inexpensive
Limitations:
-low storage
-obsolete
-not durable
What is a cellular modem?
Its use, advantages and limitations?
Enables wireless communication and connection to internet via cellular network.
Advantages:
-mobile
-reliable
-broad coverage
Limitations:
-data caps
-speed limits
-costly
What is ADSL?
Its use, advantages and limitations?
Asymmetric Digital Subscriber Line
Enables internet access over copper telephone lines
Advantages:
-less expensive
-easy to install
Limitations:
- slower
-distant reliant
What is fibre?
Its use, advantages and limitations?
Broadband using fibre optic to transfer data as light signals to access internet
Advantages:
-Faster
-reliable as not affected by weather
Limitations:
-expensive
-not as readily available
What is VR?
Its use, advantages and limitations?
A simulation of a real life simulation or environment
Used for gaming, training and education
Advantages:
-Immersive
-interactive
-not real (safer)
Limitations:
-Costly
-motion sickness
-isolation
What is AR?
Its use, advantages and limitations?
Overlays digital information and objects into real world, blending the 2 together.
Used for gaming, training and education
Advantages:
-enhances the real world
-allows for the merging of real and digital world
Limitations:
-device dependent
-limited immersion
-costly
