The control unit (CU) is a component of a Computer's Central Processing Unit (CPU) that directs the operation of the processor. It tells the computer's memory, arithmetic/logic unit, and input and output devices on how to respond to a program's instructions. It controls on primitive operations (micro-operations).

Control Unit - Computer Architecture

In this “Control Unit - Computer Architecture” you will learn about following topics:

  1. Introduction of Control Unit
  2. Registers Involved In Each Instruction Cycle
  3. Micro-Operations for Different Sub-Cycles
  4. The Fetch Cycle
  5. The Indirect Cycle
  6. The Execute Cycle
  7. The Interrupt Cycle
  8. Control of Processor/CPU
  9. Responsibilities of CPU
  10. Functional Requirement of CPU
  11. Structure of Control Unit with Control Signals
  12. Types of Design Issues in Control Unit
  13. Hardwired Control Unit
  14. Two Main Issues in Hardwired Implementation
  15. Control Unit Input
  16. Control Unit Logic
  17. Micro-Programmed Control Unit
  18. Difference between Hardwired and Micro-programmed Control Unit
  19. Types of Micro-instruction Format
  20. Horizontal Micro-instruction Format
  21. Vertical Micro-instruction Format
  22. Difference between Horizontal and Vertical Micro-instruction Format
  23. Microinstruction Sequencing
  24. Microinstruction Sequencing Techniques
  25. Two Address Field Microinstruction
  26. Single Address Field Microinstruction
  27. Variable Format Microinstruction
  28. Micro-instruction Execution




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BCA 5th Semester CA (Computer Architecture) Notes Pdf:

  1. Unit I: Introduction To Computer Architecture And Organization - Computer Architecture
  2. Unit II: Register Transfer And Micro Operations - Computer Architecture
  3. Unit III: Central Processing Unit (CPU) - Computer Architecture
  4. Unit IV: Computer Arithmetic - Computer Architecture
  5. Unit VI: Memory Organization - Computer Architecture
  6. Unit VII: Input/Ouput Organization - Computer Architecture
  7. Unit VIII: Reduced Instruction Set Computer (RISC) - Computer Architecture
  8. Unit IX: Introduction To Parallel Processing - Computer Architecture
  9. Unit X: Multicore Computers - Computer Architecture