What is hardwired control? Discuss its advantages and disadvantages
Question
What is hardwired control? Discuss its advantages and disadvantages
Solution
Hardwired control is a type of control mechanism that uses an instruction set to control the operations of a computer. It is a system that is designed to perform a specific task and cannot be changed without altering the physical wiring of the system.
Advantages of Hardwired Control:
- Speed: Since the control signals are generated by the hardware, it is faster than the microprogrammed control.
- Efficiency: It is more efficient as it directly generates the control signals.
- Design: The design of the hardwired control unit is simpler than the microprogrammed control unit.
Disadvantages of Hardwired Control:
- Flexibility: Hardwired control units are not flexible. If there is a need to change the instruction set, the wiring of the unit needs to be changed.
- Complexity: As the number of instructions increases, the complexity of the system also increases.
- Cost: The cost of designing and manufacturing hardwired control units is higher than microprogrammed control units.
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