COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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priority
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service
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frequency
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None of the above
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Detailed explanation-1: -The PCI bus connects high-speed high-bandwidth devices to the memory subsystem ( and the CPU. ) The expansion bus connects slower low-bandwidth devices, which typically deliver data one character at a time ( with buffering. )
Detailed explanation-2: -Maskable Interrupt − The hardware interrupts that can be delayed when a highest priority interrupt has occurred to the processor.
Detailed explanation-3: -A trap is a software-generated interrupt caused either by an error, or by a specific request from a user program that an operating-system service by performed. An interrupt is a signal that gets the attention of the CPU and is usually generated when I/O is required.
Detailed explanation-4: -A hardware interrupt is an electronic signal from an external hardware device that indicates it needs attention from the OS. One example of this is moving a mouse or pressing a keyboard key. In these examples of interrupts, the processor must stop to read the mouse position or keystroke at that instant.