Before the cloud we ran software and hardware on our computers and servers locally on our own premises. We call this, "On-premise". A company was responsible for maintaining and managing their own infrastructure, including the servers, storage, and networking equipment. This required a large upfront investment as well as ongoing maitenance and support costs.

Cloud computing, on the other hand, refers to the delivery of computing resources over the Internet. Instead of running applications or storing data on their own computers or servers, users can access these things over the Internet from a cloud provider. The provider manages the infrastructure and maintenance of the servers and other resources, allowing users to focus on their own applications and data.

In other words, cloud computing allows users to access and use computing resources over the Internet. Instead of running applications or storing data on their own computers or servers, users can access these things over the Internet from a cloud provider. This provider manages the infrastructure and maintenance of the servers and other resources, allowing users to focus on their own applications and data.

The cloud allows a business to scale rapidly and offers an unlimited amount of computing resources.

There are several different types of cloud computing, including:

• Public cloud: A cloud service that is owned and operated by a third-party cloud service provider, which makes its resources available to the general public over the Internet.
• Private cloud: A cloud service that is owned and operated by a single organization, and which provides resources only to that organization.
• Hybrid cloud: A combination of public and private clouds, which allows an organization to use the most appropriate resources for each workload.
• Community cloud: A cloud service that is shared by several organizations and supports a specific community that has shared concerns (e.g., mission, security requirements, policy, and compliance considerations).
• Multi-cloud: The use of multiple cloud computing services in a single heterogeneous architecture.

Cloud computing has several benefits, including the ability to scale resources up or down as needed, reduced upfront costs for hardware and software, and increased reliability and security.

There are several benefits of cloud computing

• Cost savings: One of the main benefits of cloud computing is the potential for cost savings. With a pay-as-you-go pricing model, users only pay for the resources they use, which can be more cost-effective than purchasing and maintaining on-premise hardware and software.
• Scalability: Cloud computing allows users to scale resources up or down as needed, which means that they can easily adjust to changing needs or demands. This is particularly useful for businesses that experience seasonal or unpredictable workloads.
• Accessibility: Cloud computing allows users to access their applications and data from anywhere with an Internet connection, which means that they can work remotely or on the go.
• Reliability: Cloud providers invest heavily in their infrastructure, including backup systems and disaster recovery, which can help to ensure the reliability and availability of applications and data.
• Security: Cloud providers invest heavily in security measures to protect their users' data, and often have resources and expertise that are not available to most organizations. This can help to ensure the security and compliance of applications and data.
• Collaboration: Cloud computing can facilitate collaboration, as it allows multiple users to access and work on the same documents and applications at the same time.
• Automatic updates: With cloud computing, users don't have to worry about installing and maintaining software updates, as these are handled automatically by the provider. This can help to reduce the burden on IT staff and improve the overall efficiency of the organization.

Overall, cloud computing allows a business to scale rapdily, and utilize as many resources needed to grow their business. Instead of focusing and investing in infrastructure, they can focus on their energy on their business.

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