<ul data-eligibleForWebStory="false">In C, program memory is divided into stack and heap regions, each with distinct memory management mechanisms.The stack is auto-managed by the compiler and CPU, used for function calls, local variables, and return addresses.On the other hand, the heap is manually controlled and used for dynamic memory allocation, requiring manual deallocation.Understanding data lifetime, access patterns, and memory allocation usage in each region is crucial for embedded engineers.