explain Process States and Process Control Block (PCB), Basic Computer Science

explain Process States and Process Control Block (PCB), Basic Computer Science

Assignment Help:

Process States
Throughout the lifespan of a process, its execution position may be in one of four states: (linked with each state is generally a queue on which the process resides)
1. Executing: the process is at present running and has control of a CPU
2. Waiting: the process is at present able to run, but must wait until a CPU becomes available
3. Blocked: the process is at present waiting on I/O, either for input to arrive or output to be sent
4. Suspended: the process is at present able to run, but for some reason the OS has not placed the process on the prepared queue
5. Ready: the process is in memory, will execute specified CPU time.
Process Control Block (PCB)
If the OS allows multiprogramming, then it requires keeping track of all the processes. For every process, its process control block PCB is used to track the process''s execution status, together with the following:
1. Its present processor register contents
2. Its processor state (if it is blocked or set)
3. Which resources have been allocated to it
4. Its memory state
5. A pointer to its stack

6. Which resources it needs

Related Discussions:- explain Process States and Process Control Block (PCB)

Operating system, Ask question describes deadlock avoidance#Minimum 100 wor...

Ask question describes deadlock avoidance#Minimum 100 words accepted#

You here., help please

help please

Artificial intelligence agents, Artificial Intelligence Agents In the ea...

Artificial Intelligence Agents In the earlier teach, we discussed what we will be talking about in Artificial Intelligence and why those tasks are important. This lecture is all

Vector processor, tell me about vector processor

tell me about vector processor

Merchant problem, Pebble Merchant Problem Description There is a pebble mer...

Pebble Merchant Problem Description There is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides.

Project of interactive powerpoint in human computer , Hi There, can you h...

Hi There, can you help me with my small project please, i have sent it yesterday and you dont replay. can you please ethir lem me know you can do it or no Regrads Meshari

Oprator, what is member dereferencing oprator ?

what is member dereferencing oprator ?

Definition of User-Level Thread?, User-level threads apply in user-level li...

User-level threads apply in user-level libraries, before via systems calls, so thread switching does not require to call operating system and to cause interrupt to the kernel. Actu

Management information system, suggest 5 ways by which new products and ser...

suggest 5 ways by which new products and services can be developed using management information system

Assignment, write an essay explaining the following: 1.Storage aspects a. D...

write an essay explaining the following: 1.Storage aspects a. Disk formatting, b.Disk boot block ,c.Bad block removal, d.Compensation.

Write Your Message!

Name

Email id

Message

Verfication Code

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!

Submit Assignment

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