Programmable Logic Devices (PLDs) are electronic components used to build digital circuits. They can be programmed to perform specific logic functions, allowing designers to create custom hardware solutions. PLDs are versatile and can be reconfigured, making them suitable for various applications in electronics and computing. Common types of PLDs include Field-Programmable Gate Arrays (FPGAs) and Complex Programmable Logic Devices (CPLDs). These devices enable engineers to implement complex logic designs without the need for custom chips, reducing development time and costs. PLDs are widely used in industries such as telecommunications, automotive, and consumer electronics.