In cloud computing, the public clouds are the type that are housed within the premises of a cloud computing service provider and accessed through the Internet. Examples of popular public clouds are Microsoft’s One Drive, Google Drive and Dropbox.
Public clouds are best when several people use the data shared and the security standards required of such data are not very high. They are efficient especially in undertaking collaboration projects. But then again, for businesses and enterprises, public clouds are also the best for the following reasons:
Simplicity and Accessibility
Public clouds are user-friendly and accessible. They permit access anywhere—at home, while on business travel or having leisure time. In contrast, private clouds do not have similar advantage. On the other hand, hybrid clouds are more complex as both the public and private data centers should be managed.
The pool for public cloud computing providers is wider and larger as there is a huge and profitable market for them. You have more liberty in choosing the cloud service provider that fits your needs, whether for business or personal uses. Even if you have already chosen a cloud service provider, but if in the long run, it no longer fits your needs, there are thousands of other providers from which you can subscribe.
Necessary changes are the easiest to implement in public clouds. This is because they are virtually unlimited when it comes to scalability and that is due to the fact that services offered by public clouds have the highest demands. Changes in volume or size of a client’s needs are easily handled, and rescaling or alterations in activities are automatically addressed.
In public clouds, you only pay for whatever it is that you used offered by the public clouds as they are pay-for-use infrastructure. When there is a need to scale up your capacity, you only pay for the amount of extra. Conversely, in scaling down, your fees are reduced. If you experience a downtime in its service, you pay lesser; and if there is no traffic, you do not have to pay anything at all.
Cloud computing service providers are equipped with massive server network which can be tapped to accommodate your additional demands. On the other hand, on-premise dedicated private clouds cannot be easily scaled up to address real-time demand unless the infrastructure is built with huge capacity for easy scaling up.
Technically, there are no other expenses unlike in private and hybrid clouds where you have to invest in building an infrastructure, or regularly updating your software and maintain it. Also, in these types of clouds, you need to hire IT staff to manage your equipment and facilities.
Because they are off-site, public clouds are easy to set up and configure such that the process may only take several minutes or a few hours. In contrast, it may take weeks or sometimes, even months for on-premise hybrid or private clouds to be setup at your area. However, in all types of clouds, there is 24-hour online support or technical service available.