Storage Devices Task
Storage Device
Hard Disk
Advantages
 Holds plenty data
 Relatively cheap
Disadvantages
 Not portable since it is screwed into the
computer chase, but you can buy an
external hard disk.
 Faster than external storage devices  Data can be damaged if the read/write
head of it crashes
 Data can be written to it and
deleted from it plenty times
 Very reliable if it is not damaged.
 Doesn’t take up plenty space
Magnetic tape
backup
 The cheapest form of storing data
on a per megabyte basis
 Holds plenty data
 Backing up can be set to overnight
or over the weekend
 Slow to access data as it uses serial
access (starts from the beginning then
continues going through the data stored
until it reaches the specific data that is
needed)
 Magnets can corrupt the tape
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 Very reliable if it is not damaged
CD-ROM
 Not considered portable as it needs
special equipment to read the data on
it
 Has a limited life span and the quality of
it declines overtime
 Data cannot be changed
 Very Cheap
 Faster than CD-RW
 If scratched the data may not be
readable
 Easy to use
CD-RW
 Can be erased and reused
 Slower than hard disk
 It has a slower burning and reading
speed than CD-ROM
 It is the best CD for transferring data
 It is more expensive than CD-ROM
 Small and Portable
DVD
 Very large storage capacity 4.7-9
Gb.
 Many CD players do not read CD-RW
 DVDs do not work in CD drives.
 There is no single standard of DVD.
 Sound and picture quality is
excellent, making them ideal for
storing films with video and sound.
 They can be easily damaged by
breaking or scratching.
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 DVDs are now mass produced so
they are relatively cheap.
Flash Memory
Stick
 DVD drives can read CDs.
 Speed. It possesses high transferring
speeds.
 Durability. It does not contain any
moving parts which means it is
durable.
 Form Factor. Flash memories comes
in different forms
Network storage
 Cost. It is expensive.
 Lifetime. Although flash memories are
more durable than hard drive disks its
lifetime isn’t infinite.
 Capacity. Though it has a variety of
capacities. The ones with more storage
costs more.
 Reliability. It is more reliability
 Editing Works. It rewrites data in block
because compared to the hard disk
units which is done one by one. That
drive which has a moving
takes a long amount of time to do so.
vulnerable part.
 Physical Damage. It is prone to being
 Portability. It is highly portable
easily smashed or lost.
because it is small and light
weighted.
 More Storage Space
 Human error or natural disasters can
affect your storage as network storage
 Flawless Collaboration
is on site storage, which makes it prone
to damage
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 Private Cloud Storage
 Automated Data Backup
 Data Protection
 Simple Server Setup Procedure
Online/ Cloud
storage
 Usability and accessibility.
 Security.
 Cost-efficient.
 Many network storage uses the
operating system Linux, which is not
user friendly, as it requires writing scripts
to access certain functions, so you
would need to hire professional help to
do different tasks for example
recovering data.
 Internet Connection. Cloud based
storage is dependent on having an
internet connection.
 Convenient sharing of files.
 Costly. There are additional costs for
uploading and downloading files from
the cloud.
 Automation.
 Bad support.
 Multiple users.
 Privacy issues
 Synchronization.
 Convenience.
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