Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Videos > Computer Architecture & Organisation (CAO) > Design of Control Unit
Design of Control Unit Video Lecture | Computer Architecture & Organisation (CAO) - Computer Science Engineering (CSE)
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FAQs on Design of Control Unit Video Lecture - Computer Architecture & Organisation (CAO) - Computer Science Engineering (CSE)
| 1. What is a control unit? |  |
Ans. A control unit is a component of a computer's central processing unit (CPU) that manages and coordinates the execution of instructions. It acts as the brain of the CPU, directing the flow of data and controlling the operations of other hardware components.
| 2. What is the role of a control unit in a computer system? | |
Ans. The control unit plays a vital role in a computer system. It fetches instructions from memory, decodes them, and generates the necessary control signals to execute the instructions. It coordinates the activities of various hardware components, such as the arithmetic logic unit (ALU) and the memory unit, to ensure proper execution of instructions.
| 3. How does a control unit execute instructions in a computer? | |
Ans. The control unit follows a series of steps to execute instructions in a computer. First, it fetches the instruction from memory. Then, it decodes the instruction to determine the operation to be performed. Next, it generates the necessary control signals to initiate the required operations in the ALU or memory unit. Finally, it updates the program counter to fetch the next instruction.
| 4. Can a control unit handle multiple instructions simultaneously? | |
Ans. No, a control unit typically handles instructions sequentially. It fetches, decodes, and executes one instruction at a time. However, modern CPUs may employ techniques like pipelining or superscalar execution to improve performance by overlapping the execution of multiple instructions.
| 5. What are the components of a control unit? | |
Ans. The control unit consists of several components, including the instruction register (IR), program counter (PC), arithmetic logic unit (ALU), and various control signals. The IR stores the currently fetched instruction, while the PC keeps track of the memory address of the next instruction. The ALU performs arithmetic and logical operations, and the control signals coordinate the activities of different hardware components.
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Dec 26, 2024 Last updated |
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