A multicore processor is a single computing component that contains two or more independent processing units, known as cores. Each core can execute its own tasks simultaneously, allowing for improved performance and efficiency. This design helps computers handle multiple applications or processes at the same time without slowing down. Multicore technology is commonly used in various devices, including smartphones, laptops, and servers. By distributing workloads across multiple cores, these processors can perform complex calculations and run demanding software more effectively, making them essential for modern computing needs.