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)

Data Type Conversion, Sometimes you may drop to perform conversions among t...

Sometimes you may drop to perform conversions among the built-in types. To translate between types you just use the type name as a function. There are quite a few built-in function

Distinguish between the cryptoprovider and the managed class, QUESTION ...

QUESTION (a) Using the Luhn 10 check formula verify whether the following account number is compliant: 49927398716. Show details of your workings (b) Why is it advisable to

Cppm, sum of first 100 integers

sum of first 100 integers

File, file system

file system

Medical counter/shop, Medical Counter/Shop The Software for medical co...

Medical Counter/Shop The Software for medical counter/shop should maintain: Complete customer Details Inventory Control Billing Linked to Accounts Have c

Paid Website Usability Testers, Assess the reliability of data gathered via...

Assess the reliability of data gathered via paid Internet users. Describe and assess the evaluation method being used by the testing company, i.e., nonvisual and verbal recording o

Qbasic, write a program of circle of any colour

write a program of circle of any colour

Microprocessor, 8088 timing system diagram

8088 timing system diagram

Optical mark recognition, Optical Mark Recognition (OMR): OMR is the s...

Optical Mark Recognition (OMR): OMR is the scanning of paper to detect the presence or absence of a mark in a predetermined position. Now days, it is used as an input device f

CAI, What is CAI? Explain its pitfalls.

What is CAI? Explain its pitfalls.

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