When building systems , there's essential to understand the distinct roles of HLD and low-level design . Top-level design provides a broader picture of the system , describing the principal components and their connections omitting detailed execution specifics. In contrast , Detailed design goes … Read More

Even in a UPI-heavy economy, almost every billing counter in India still keeps a physical cash drawer under the counter, from kirana stores to pharmacies and restaurants. Card and QR payments have not removed cash, they have just made the drawer less busy. A proper cash drawer beats a loose box b… Read More