Public Cloud Computing allows companies, individuals and enterprises to store their data or applications on an external server that is maintained by a third party in a remote location.
In public cloud, the server space is typically shared by several companies and enterprises, and they access the data stored there via the internet, and the third party (cloud computing service provider) charges them a regular fee for the service provided.
Advantages of Public Cloud computing
- One of the key advantages of choosing Public Cloud Computing over private cloud computing is the fact that the former requires little to no capital expenditure. Therefore, this allows smaller companies (with less capital funds) to enter the market and compete with capital rich enterprises.
- Another key advantage of the public cloud is – it is much cheaper when compared to private cloud computing. For companies who use public cloud computing, there is no need to set huge funds aside for the one-time purchase, the running costs and the regular maintenance of the server, as all this will be borne by the service provider.
- With public cloud computing, companies need not accurately estimate their needs or future needs of server space. This is because the cloud service providers allow companies and enterprises to increase and decrease their storage space as and when they want to with ease, and companies pay only for the space they use.
Disadvantages of Public Cloud Computing
- As public cloud computing employs the services of a third party, i.e., the cloud service provider – the data, applications and other resources stored there cannot be considered to be as secure as the data stored on the company’s own individual private cloud.
- In the private cloud computing set up, a company can set up the server, the hardware and other components to specifically suit their needs and requirements for optimum performance. But with public cloud, this may not always be the case.
- In the case of public cloud computing, as the service level policies are enforced by the external service provider, the company or enterprise is not always in complete control of the data and infrastructure he is renting out, and this is a cause for concern.
Do you know the types of cloud computing & services? – Read here