Essential properties of operating system, Operating System

Assignment Help:

Essential Properties of Operating System

1. Batch: Jobs with similar needs are batched together and run through the computer as a group by an operator or automatic job sequencer. Performance is increased by trying to keep I/O devices and CPU busy at all times through buffering, off line operation, spooling and multiprogramming. A Batch system is decent for executing large jobs which need little interaction, it can be submitted as well as picked up latter.

2. Time sharing: Uses CPU s scheduling and multiprogramming to provide economical interactive use of a system. CPU switches rapidly from one user to another it implies that CPU is shared between some interactive users. Rather than having a job defined by spooled card images, every program reads its subsequent control instructions from the terminal and output is typically printed immediately on the screen.

3. Interactive: User is on line with computer system and interacts with it by an interface. It is normally composed of many short transactions where result of the subsequent transaction may be unpredictable. Response time needs to be short because the user submits and waits for result.

4. Real time system: Real time systems are generally dedicated, embedded systems. They normally read from and react to sensor data. System should guarantee response to events within fixed periods of time to make sure correct performance.

5. Distributed: Distributes computation among several physical processors. The processors don't share memory or a clock. Instead each processor has its own local memory. They communicate with each other through various communication lines.


Related Discussions:- Essential properties of operating system

For what reason would such a scheme be useful, Q. A Burroughs B7000/B6000 ...

Q. A Burroughs B7000/B6000 MCP file is able to be tagged as sensitive data. When such a file is removed its storage area is overwritten by some random bits. For what reason would

What are the different types of semaphore?, What are the different types of...

What are the different types of semaphore? Principally the semaphore is able to be classified into two on the basis of their values a)      Counting semaphore: In counting s

Case studies, Did Abhinav agree to the initial timeline requested by Rebecc...

Did Abhinav agree to the initial timeline requested by Rebecca

Explain schemes for defining the logical structure, What are the most commo...

What are the most common schemes for defining the logical structure of a directory? The most common schemes for explaining the logical structure of a directory Single-L

What is the purpose of system calls, Q. What is the purpose of system calls...

Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.

Memory management, what is hashed page tables & explain of there work & fig...

what is hashed page tables & explain of there work & figure

Mention some attractive properties of semaphore?, Mention some attractive p...

Mention some attractive properties of semaphore?              The Semaphores aren't provided by hardware. However they have numerous attractive properties: Machine indep

Requirements to satisfied by the critical section problem, What are the req...

What are the requirements to be satisfied by the critical section problem? Following are the necessities to be satisfied by the critical section problem: a)      Mutual exc

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