Which system component is responsible for intercepting physical hardware signals (like a keyboard stroke) and routing them to the appropriate operating system thread? MCQ with Answer and Explanation
Which system component is responsible for intercepting physical hardware signals (like a keyboard stroke) and routing them to the appropriate operating system thread?
A. Interrupt Handler / Interrupt Service Routine
B. Disk Cleanup Module
C. File Allocation Table
D. Application Presentation Engine
Answer: Option A
Solution (By JKSSB Mock Tests)
An interrupt handler is a system software routine that responds to hardware signals (interrupts) and pauses the CPU briefly to handle the incoming input event.
Explanation:
A debugger lets developers pause execution, step through code line by line, and inspect variable states to identify and resolve software bugs.
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