DEAD LOCK IN Computer

-

A deadlock is a condition where a program cannot access a resource it needs to continue. When an active application hits a deadlock, it may "hang" or become unresponsive.

Resources, such as saved or cached data, may be locked when accessed by a specific process within a program. Locking the data prevents other processes from overwriting the data prematurely. If a process or query needs to access locked data, but the process locking the data won't let it go, a deadlock may occur.

For example, the following situation will cause a deadlock between two processes:

  • Process 1 requests resource B from process 2.
  • Resource B is locked while process 2 is running.
  • Process 2 requires resource A from process 1 to finish running.
  • Resource A is locked while process 1 is running.

The result is that process 1 and process 2 are waiting for each other to finish. Since neither process can continue until the other one completes, a deadlock is created.

Avoiding Deadlocks

Developers can prevent deadlocks by avoiding locking conditions in their programming logic. For example, instead of having two processes rely on each other, the source code can be written so that each thread finishes before another thread needs its resources. By ensuring data is accessible when needed, programmers can protect their applications from hanging or crashing.

Comments

Post a Comment

Popular posts from this blog

BASIC ICT SKILLS - CLASS - IX

-
INFORMATION AND COMMUNICATION TECHNOLOGY Chandrakant Nanda Introduction Information and Communications Technology (ICT) can be regarded as the extension of IT as it involves the integration of IT with media transmission and broadcasting technologies. In the past few decades, Information Technology (IT) has brought a revolution in the computing and communication fields.  Today, thanks to the Internet, you can send or receive information almost about any topic in just a few seconds from any corner of the world.  The Internet also allows you to communicate with a person or a group of people simultaneously in a real-time environment.  Innovations in the IT field have affected many areas of our daily life, such as education, entertainment and health.  The revolution in the IT sector has also created many new careers in the field of software and engineering.  However, despite its numerous advantages, the IT sector poses serious problems in the form of ...
Read more

GREEN SKILLS - I

-
Image
Introduction Green economy aims to provide a high quality of life by the efficient use of natural resources.  The factors behind adopting green economy are consumption of vast amount of non-renewable resources, non-availability of mineral and energy-resources frequently and growing number of poor people. The steps towards developing green economy also make an impact on employment rate by offering green jobs which will define its significance in the future.  Green jobs can be created in different sectors, such as agriculture, industry, services or administration. These sectors may include the kinds of jobs that provide protection of ecosystems; reduce the consumption of energy, raw materials and water; and minimize waste and pollution. Now, to do such green jobs, some necessary green skills are required. Green skills are the skills required to adapt the processes, services and products for climate change in compliance with the environment rules and regulations related...
Read more

Unit-II : Computer Networks (Class XII)

-
Image
  CHAPTER-8 COMPUTER NETWORKS 8.1 Evolution of Networking: 8.1.1 Introduction to Computer Networks: Network: - To connect the more than one devices via a medium, is called network. Why do we need network? 1.      Fast and Secure Communication 2.      Resource sharing 3.      Reduce Cost 8.1.2 Evolution of Network: ARPANET: The Advanced Research Projects Agency Network ( ARPANET ) was an early packet switching network and the first network to implement the protocol suite TCP/IP. Both technologies became the technical foundation of the Internet. NSFNET:  §   The N ational S cience F oundation Net work (NSFNET) was a program created and funded by the National Science Foundation to coordinate and promote advanced research and education in networking in the United States.  §   NSFNET was founded in 1985. NSFNET was a general purpose research network wherein the connection is ...
Read more