---
title: "What is a device queue?"  
description: "What is a device queue?"  
author: "Prakash nidhi Verma"  
published: 2018-07-09  
updated: 2020-09-24  
canonical: https://www.mindstick.com/interview/23461/what-is-a-device-queue  
category: "database"  
tags: ["database", "os run-time error", "struct"]  
reading_time: 1 minute  

---

# What is a device queue?

in operating system having different queues of processes is shown below:

Job Queue: Each new process goes into the job queue.Processes in the job queue reside on mass storage and the allocation of main memory is awaited.

Ready Queue: in main memory the set of all processes that waiting for CPU. time is kept in the ready queue.

Waiting (Device) Queues: The set of processes waiting for allocation of certain I/O devices is kept in the waiting (device) queue. Device Queue is the list of processes waiting for particular I/O devices.

## Answers

### Answer by Prakash nidhi Verma

in operating system having different queues of processes is shown below:

Job Queue: Each new process goes into the job queue.Processes in the job queue reside on mass storage and the allocation of main memory is awaited.

Ready Queue: in main memory the set of all processes that waiting for CPU. time is kept in the ready queue.

Waiting (Device) Queues: The set of processes waiting for allocation of certain I/O devices is kept in the waiting (device) queue. Device Queue is the list of processes waiting for particular I/O devices.


---

Original Source: https://www.mindstick.com/interview/23461/what-is-a-device-queue

Copyright © MindStick Software Pvt. Ltd. This Markdown version is provided for developers, AI systems, and offline reading.