Microinstructions Video Lecture - Computer Science Engineering (CSE)

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FAQs on Microinstructions Video Lecture - Computer Science Engineering (CSE)

1. What is a microinstruction in computer science engineering?
Ans. A microinstruction in computer science engineering is a low-level instruction that controls the operations of the individual components of a computer's central processing unit (CPU). It specifies the micro-operations to be performed by the CPU and is used to execute higher-level machine instructions.
2. How are microinstructions different from machine instructions?
Ans. Microinstructions are lower-level instructions that control the CPU's operations, while machine instructions are higher-level instructions understood by the computer's hardware. Microinstructions are used to execute machine instructions by specifying the micro-operations to be performed by the CPU.
3. What is the role of microinstructions in the execution of programs?
Ans. Microinstructions play a crucial role in the execution of programs by providing a detailed set of instructions for the CPU to perform. They control the flow of data and operations within the CPU, enabling the execution of higher-level machine instructions and the overall functioning of a program.
4. How are microinstructions stored and accessed in a computer system?
Ans. Microinstructions are typically stored in a control memory unit within a computer system. This control memory is designed to hold microinstructions and can be accessed by the CPU during the execution of programs. The microinstructions are fetched from the control memory based on the program counter's value.
5. Can microinstructions be modified or updated during program execution?
Ans. In most computer systems, microinstructions are fixed and cannot be modified or updated during program execution. They are typically hardwired in the control memory and remain constant throughout the execution. However, some advanced computer architectures may allow for limited flexibility in modifying microinstructions during runtime, but it is not a common practice.
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