BCA Semester 2 – Microprocessor and Comp. Architecture – Unit 5: Central Processing Unit (10Hrs)

1. Definition of CPU (Central Processing Unit) The CPU is the main component of a computer that performs all processing tasks. It executes instructions, performs arithmetic and logical operations,

1. Introduction The Control Unit (CU) is responsible for directing the operation of the processor. After an instruction is fetched from memory, the CU must determine the type of instruction to gener

1. Definition of Control Word Control Word: - A binary word generated by the Control Unit (CU) to control the operation of various functional units of the CPU. - Each bit in the control word repre

1. Requirement of Common Bus System A common bus system is used in CPU to transfer data between registers, memory, and ALU using a single communication path (bus). Requirements: 1. Single Data Path

1. Control Unit (CU) Working Principle Definition: The Control Unit manages the operation of the CPU by generating control signals to coordinate data flow between registers, ALU, memory, and I/O dev