Difference between revisions of "Cloud computing"
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==Advantages== | ==Advantages== | ||
*Cloud computing can offer extensive resources to users who need them, even though the user is connecting with the same device as everyone else | *Cloud computing can offer extensive resources to users who need them, even though the user is connecting with the same device as everyone else | ||
| − | *Provisioning cloud computing is usually quite simple, and can often be done over the internet<ref name="ibm.com" | + | *Provisioning cloud computing is usually quite simple, and can often be done over the internet<ref name="ibm.com"/><ref name="searchcloudcomputing.techtarget.com">http://searchcloudcomputing.techtarget.com/definition/cloud-computing</ref> |
| − | *Service can be scaled up or down as resource needs change<ref name="ibm.com" | + | *Service can be scaled up or down as resource needs change<ref name="ibm.com"/><ref name="searchcloudcomputing.techtarget.com"/> |
*Clients can access their data and applications from anywhere<ref name="cloud-computing2">http://computer.howstuffworks.com/cloud-computing/cloud-computing2.htm</ref> | *Clients can access their data and applications from anywhere<ref name="cloud-computing2">http://computer.howstuffworks.com/cloud-computing/cloud-computing2.htm</ref> | ||
| − | *No physical space, electric, and network requirements for local facilities<ref name="cloud-computing2" | + | *No physical space, electric, and network requirements for local facilities<ref name="cloud-computing2"/> |
| − | *In many cases, service is metered, so customers only pay for what they use<ref name="ibm.com" | + | *In many cases, service is metered, so customers only pay for what they use<ref name="ibm.com"/> |
==Disadvantages== | ==Disadvantages== | ||
*Clients must have Internet access to use cloud resources | *Clients must have Internet access to use cloud resources | ||
*Security and some other configuration options are often managed by the provider, rather than the subscriber<ref name="cloud-computing3.htm">http://computer.howstuffworks.com/cloud-computing/cloud-computing3.htm</ref> | *Security and some other configuration options are often managed by the provider, rather than the subscriber<ref name="cloud-computing3.htm">http://computer.howstuffworks.com/cloud-computing/cloud-computing3.htm</ref> | ||
| − | *With no localization of resources, private information can typically be accessed from anywhere, potentially putting privacy at risk<ref name="cloud-computing3.htm" | + | *With no localization of resources, private information can typically be accessed from anywhere, potentially putting privacy at risk<ref name="cloud-computing3.htm"/> |
==References== | ==References== | ||
Revision as of 21:04, September 1, 2017
Cloud computing is a computing model which allows the hosting of internet resources from a third party's datacenter. Rather that purchasing, maintaining, and monitoring their own servers, individuals and organizations can pay for hosting, infrastructure, platforms, and even security under the "everything as a service" model.[1][2] Not only does this eliminate the costs and labor of maintaining one's own servers, but it also can essentially make the entire client-server model obsolete for its users. Even local workstations can be reduced to little more that terminals, which only need to run the cloud computing system's interface software. In this case, all processing and storage in handled off-site, by "cloud" servers at some other location, rather than on each device's hardware. Cloud computing is very often used for hosting websites and other internet services for external users. For example, E-mail service from websites such as Outlook, Yahoo, or Gmail are offered from the cloud.[3]
Advantages
- Cloud computing can offer extensive resources to users who need them, even though the user is connecting with the same device as everyone else
- Provisioning cloud computing is usually quite simple, and can often be done over the internet[1][4]
- Service can be scaled up or down as resource needs change[1][4]
- Clients can access their data and applications from anywhere[5]
- No physical space, electric, and network requirements for local facilities[5]
- In many cases, service is metered, so customers only pay for what they use[1]
Disadvantages
- Clients must have Internet access to use cloud resources
- Security and some other configuration options are often managed by the provider, rather than the subscriber[6]
- With no localization of resources, private information can typically be accessed from anywhere, potentially putting privacy at risk[6]
References
- ↑ 1.0 1.1 1.2 1.3 https://www.ibm.com/cloud-computing/learn-more/what-is-cloud-computing
- ↑ https://www.pcmag.com/article2/0,2817,2372163,00.asp
- ↑ http://computer.howstuffworks.com/cloud-computing/cloud-computing.htm
- ↑ 4.0 4.1 http://searchcloudcomputing.techtarget.com/definition/cloud-computing
- ↑ 5.0 5.1 http://computer.howstuffworks.com/cloud-computing/cloud-computing2.htm
- ↑ 6.0 6.1 http://computer.howstuffworks.com/cloud-computing/cloud-computing3.htm