what is registers in computer

Registers in a computer are small, high-speed storage locations within the central processing unit (CPU) that store data and instructions for quick processing. They are a fundamental component of digital devices and play a critical role in helping machines process data efficiently. Registers are used for various purposes, including storing program instructions before they are executed, holding intermediate results from calculations, and allowing processors to access frequently used values without retrieving them from main memory every time they are needed. In essence, registers are the "working storage" in a CPU, providing fast access to data and instructions, but they are a limited resource.