The main advantage of cloud computing over traditional computing is its scalability and flexibility. Unlike traditional systems that require significant upfront hardware and software investments, cloud computing allows users to access resources on-demand, scaling their usage up or down based on need. This flexibility helps businesses manage costs, ensuring they only pay for what they use. Additionally, cloud services offer improved collaboration, as multiple users can access data and applications from any location with internet connectivity. The cloud also enhances disaster recovery options, making data more secure and accessible.