The Connected Limited Device Configuration (CLDC) is a specification designed for small, resource-constrained devices, such as mobile phones and embedded systems. It provides a runtime environment for applications, enabling them to run on devices with limited memory and processing power. CLDC is often used in conjunction with the Mobile Information Device Profile (MIDP) to create applications for mobile devices. CLDC defines a subset of the Java programming language, ensuring that applications can be developed and deployed across various devices. It includes essential libraries and APIs that allow developers to create efficient applications while considering the constraints of limited hardware resources.