Scalability Concepts

Scalability refers to a system's ability to handle increased demand by expanding its capacity. Imagine a coffee shop: as more customers arrive, they can add more staff or tables to serve everyone efficiently. Similarly, in technology, scalable systems can increase resources—like servers or storage—to support more users or data without slowing down or crashing. This flexibility ensures the system remains reliable, cost-effective, and efficient as needs grow, whether by adding resources horizontally (more machines) or vertically (upgrading existing ones). Scalability is essential for supporting growth and maintaining performance over time.