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MCQ

The interrupt vector contains ____________

the interrupts

the memory addresses of specialized interrupt handlers

the identifiers of interrupts

the device addresses

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MCQ

The _________ determines the cause of the interrupt, performs the necessary processing and executes a return from the interrupt instruction to return the CPU to the execution state prior to the interrupt.

interrupt request line

device driver

interrupt handler

all of the mentioned

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MCQ

A ____ a set of wires and a rigidly defined protocol that specifies a set of messages that can be sent on the wires.

port

node

bus

none of the mentioned

Discussion

MCQ

The device-status table contains ____________

each I/O device type

each I/O device address

each I/O device state

all of the mentioned

Discussion

MCQ

What is an ISR?

Information Service Request

Interrupt Service Request

Interrupt Service Routine

Information Service Routine

Discussion

MCQ

In a memory mapped input/output __________

the CPU uses polling to watch the control bit constantly, looping to see if a device is ready

the CPU writes one data byte to the data register and sets a bit in control register to show that a byte is available

the CPU receives an interrupt when the device is ready for the next byte

the CPU runs a user written code and does accordingly

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Introduction to Operating System

Types

Services

Structures

Processes

Threads

CPU Scheduling

Process Synchronization

Memory Management

Storage Management

Input Output Systems

Networking

Distributed Operating System

Protection and Security

Unix

Linux

MS Windows

Mixed

Operating Systems Overview

Process Management

Finding and Processing Files

File Management

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