Storage Devices Flashcards
how does an SSD work
uses integrated electrical circuits to store data
what are 5 advantages of SSD’s
no spin-up time
fast access to data
durable as it has no moving parts
silent
portable: smaller and lighter
what are some disadvantages of SSD’s
more expensive per GB
limited number of read-write cycles
how does magnetic storage work
contains a spinning magnetic platter, where a “head” will move over the platter and write 0s and 1s
what are some advantages of magnetic storage
cheaper
can hold lots of data
unlimited number of read-write cycles
what are some disadvantages of magnetic storage?
slower
uses more energy
has moving parts so not very durable
heavy so not portable
what is an example of magnetic storage
Magnetic Hard drive
how does optical storage work
lasers write data in disks and read it using the corresponding pits and flat sections of the disk
what are some examples of optical storage
CD
DVD
Blu-ray
what are some advantages of optical storage
portable: lightweight and easy to carry
if stored properly they can last for a long time
very cheap
what are some disadvantages of optical storage
have low capacity
can easily be scratched and data can be lost
slow as it has to access the optical disk drive
what is cloud storage
where data is stored remotely and is accessed over a network
give 3 cloud storage providers
Google Drive
Dropbox
Microsoft one drive
iCloud
what are 3 advantages of using cloud storage
data is backed up automatically
easily extend the amount of storage you are getting
you can access it from anywhere
what are 3 disadvantages of using cloud storage
