The key differences between cloud computing and traditional on-premises computing are as follows:

Cloud Computing

1. Scalability: Offers virtually unlimited scalability. Resources can be easily adjusted based on demand, without the need for physical hardware changes.
2. Cost Efficiency: Operates on a pay-as-you-go model, reducing the need for large upfront capital investments. Costs are based on usage.
3. Accessibility: Provides remote access to applications and data from anywhere with an internet connection, enhancing flexibility and collaboration.
4. Maintenance: The cloud service provider handles hardware and software maintenance, updates, and security, reducing the burden on in-house IT staff.
5. Disaster Recovery: Often includes built-in disaster recovery and backup solutions, ensuring data integrity and availability in case of failures.

Traditional On-Premises Computing

1. Control: Offers complete control over hardware, software, and data, as all resources are located within the organization’s physical premises.
2. Security: Enables direct oversight of security measures and protocols, which can be tailored specifically to the organization’s requirements.
3. Initial Investment: Requires significant upfront capital expenditure for hardware, software, and infrastructure setup.
4. Customization: Allows for highly customized and specific configurations that may be tailored to unique business needs.
5. Maintenance: The organization is responsible for all aspects of maintenance, including hardware repairs, software updates, and security management.

In summary, cloud computing provides scalable, cost-effective, and flexible solutions managed by third parties, while traditional on-premises computing offers greater control and customization at the expense of higher initial costs and ongoing maintenance responsibilities.