What data structure is used by an operating system, Computer Engineering

Assignment Help:

What data structure is used by an operating system to keep track of process information? Explain

A data structure termed as process control block (PCB) is used by an operating system to keeps track of all information relating a process. The PCB of a process consists of the subsequent information.

Process ID

Priority

Process state

PSR

Registers

Event information

Memory allocation

Resources held

PCB pointer

(a) Process scheduling information: This information contains three fields process ID, process state, priority.

(b) PSR and machine registers: These fields have contents of the processor states register (PSR) and the machine registers while the execution of the process was final suspended.

(c) Event information: While a process is in blocked state, this field consists of information concerning the event for that the process is waiting.

(d) Memory and resource information: Such information is helpful for the de-allocating memory and resources while the process terminates.

(e) PCB pointer: This is a pointer to the next PCB in the process scheduling list.


Related Discussions:- What data structure is used by an operating system

Queueing process, explain in detail about queueing process

explain in detail about queueing process

What is multiprogramming, What is multiprogramming or multitasking? The...

What is multiprogramming or multitasking? The operating system manages the concurrent implementation of several application programs to make the best possible uses of computer

Sorting circuit along with odd-even merging circuit, Q. Sorting Circuit alo...

Q. Sorting Circuit along with Odd-Even Merging Circuit? The merge sort algorithm needs two circuits which imply that one circuit for merging and another circuit for sorting the

Computer graphics, explain area sub division method algorithm

explain area sub division method algorithm

What are the elements of analysis model, What are the elements of Analysis ...

What are the elements of Analysis model? i. Data Dictionary ii. Entity Relationship Diagram iii. Data Flow Diagram iv. State Transition Diagram v. Control Specifica

Which one is an error reporting protocol, Which one is an error reporting p...

Which one is an error reporting protocol? An error reporting protocol is ICMP.

Example on hamming error correcting code, Q. Example on hamming error corre...

Q. Example on hamming error correcting code? For illustration a 4-bit matching word can stand for 2 4 =16 values that range from 0 to 15 as: 0000, 0001, 0010, 0011, 0100, 01

What is the purpose of dotnet, What is the purpose of DOTNET? Dot Net I...

What is the purpose of DOTNET? Dot Net Is a collection of products like C#, ASp.Net, Vb.Net, XML. The purpose of .Net is that we can simply upgrade and degrade our programs whi

Why isdn handles data pertaining, ISDN handles data pertaining to? ISDN...

ISDN handles data pertaining to? ISDN handles data pertaining to all digital services.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd