Microprocessors include the entire _________ on the chip.

Microprocessors are essentially the central processing units (CPUs) of computers, which means they are responsible for executing instructions and processing data. A microprocessor includes the entire processing unit on the chip, meaning it contains the arithmetic logic unit (ALU), control unit (CU), and registers necessary to perform calculations and manage data flow.

The processing unit is critical because it carries out the operations defined by the instructions in the program code. While microprocessors can interact with memory, storage, and input/output components, they themselves are primarily focused on processing tasks.

In contrast, memory units, storage units, and input/output units are separate components in computer architecture that support the processing capabilities but are not part of the microprocessor itself. Memory units store data that can be accessed by the processor, storage units (like hard drives) are for long-term data retention, and input/output units manage communication between the computer and external devices. Therefore, the correct answer highlights that the processing unit is the core component integrated into the microprocessor chip.