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USE OF DATA & BIG DATA, magnetic storage, Optical storage - Coggle…
USE OF DATA & BIG DATA
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cloud storage
Cloud Storage is when data is stored on multiple computers in a separate location.
These Servers primarliy use magnetic storage but some, more modern servers may also use solid state storage.
Data is usually accessed through some sort of web web interface or online file explorer. Most cloud storage companies also have desktop applications that "synchronize" files to and from the cloud to your devices.
To be competitive, large data centres are needed. This is why cloud storage providers are typically owned by large technology companies.
Advantages: Large providers are reliable and stable, Files can be accessed from anywhere (convenient), Backup copies of data and version control may be available
Disadvantages: nternet connection is needed, For small users the cost may be high and is not usually a one-off payment. For example most cloud storage providers offer monthly subscriptions, No control over security or the location of the servers
Big data
Modern businesses collect huge amounts of data. An organised collection of related data is called a data set.
Big Data is a data set that is so big that traditional data processing software can no longer handle it. By big we mean Petabytes (1,000 TB) of data, and maybe even Exabytes (1,000 PB).
The data may also be a mix of different data types or even contain data that is not associated with a specific type (making it complex).
Benefits: Analysis can reveal trends and patterns. This is called data mining, Similar data sets can interact to share data, As they are organized, searches can be performed to find specific data
Drawbacks: As data sets grow, processing time increases, Interactions between data sets can lead to data duplication. This would then require data cleaning, Poor data collection will lead to poor analysis – Garbage In, Garbage Out (GIGO)
Internal: Hard Disk Drive (HDD), Solid State Drive (SSD)
External: Flash Memory Card, USB Flash Drive, CD's, DVD's, USB External Hard Drive
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