Cloud Computing Definitions

Cloud:

·       "The cloud" refers to servers that are accessed over the Internet, and the software and databases that run on those servers.
·       The cloud is made up of servers in data centres all over the world.

Cloud Computing:

·       Cloud computing is the on-demand delivery of IT resources over the Internet with pay-as-you-go pricing.
·       Instead of buying, owning, and maintaining physical data centres and servers, you can access technology services, such as computing power, storage, and databases, on an as-needed basis from a cloud provider like Amazon Web Services (AWS).

History:

·       Before cloud computing emerged, there was client/server computing, centralized storage in which all the data, software applications and all the controls reside on the server side.

Ø     2002- AWS services launched
Ø     2006- Launched its cloud products
Ø     2012- Holds first customer event
Ø     2015- Reveals revenues achieved of $4.6 billion
Ø     2016- Surpassed $10 billon revenue target
Ø     2016- Release snowball and snowmobile
Ø     2019- Offers nearly 100 cloud services

Cloud products:

·       Google Drive
·       Netflix
·       Amazon Prime Video

Cloud providers:

·       AWS
·       Microsoft Azure
·       Google Cloud

Advantages of Cloud Computing

1.       Trade Capital Expense For Variable Expense: Pay only for what you use
2.       Benefit from massive economies of scale: You will never have the same purchasing power as Amazon
3.       Stop guessing about capacity: Cloud can scale with your business needs, with no long-term contracts
4.       Increase speed and agility: Possible with Serverless architecture
5.       Stop spending money running and maintaining data centres: Focus on your business
6.       Go Global in minutes: Easily deploy your application in multiple regions around the world

Disadvantages of Cloud Computing

Downtime
One of the major disadvantages of cloud computing is the downtime. If the servers of the companies are not accurate so, this will lead to the downtime as it won’t be able to perform properly and the access facility of the data can deny.
Vulnerable to attack
If you are connected to the internet there are chances that you suffer severe attacks as you are exposed to potential vulnerabilities. The chances are less but sometimes even the best team suffers.

Features of cloud computing




01à Provide services to multiple customers with the help of a multi-tenant model
02à User can continuously monitor the server uptime, capabilities, and allotted network storage
03à The servers are easily maintained and the downtime is very low
04à The user can access the data of the cloud or upload the data to the cloud from anywhere
05à The capabilities of the Cloud can be modified as per the use and can be extended a lot
06à Cloud computing automatically analyses the data needed at some level of services
07à It is the one-time investment as the company (host) has to buy the storage
08à It creates a snapshot of the data stored so that the data may not get lost if the servers gets damaged
09à User has to pay only for the service or the space they have utilized
10à This resource utilization is analysed by supporting charge-per-use capabilities


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