A beowulf cluster is formed using normal computers that are identical. These are arranged into a small local area network (LAN). There are programs that allow these computers to share processing among them.So beowulf clusters form a parallel processing unit using common personal computers.An image that displays the first beowulf ... Read More

The Erasable Programmable Read Only Memory is a memory chip that does not lose data even when the power is switched off. This is a non-volatile memory type i.e. it retains data even when the power is switched off. Each EPROM is individually programmed by an electronic device. After that, ... Read More

jQuery is a JavaScript library primarily designed with the purpose to make it easier to use JavaScript on our website. jQuery wraps many lines of JavaScript code into methods that we can call with a single line of code. Google provides CDN support for jQuery via the googleapis.com domain. The ... Read More

Entity in DBMS can be a real-world object with an existence, For example, in a College database, the entities can be Professor, Students, Courses, etc.Entities has attributes, which can be considered as properties describing it, for example, for Professor entity, the attributes are  Professor_Name, Professor_Address, Professor_Salary, etc. The attribute value gets ... Read More

The different types of keys in DBMS are −Candidate Key - The candidate keys in a table are defined as the set of keys that is minimal and can uniquely identify any data row in the table.Primary Key - The primary key is selected from one of the candidate keys and becomes ... Read More

Process Creation and Process termination are used to create and terminate processes respectively. Details about these are given as follows −Process CreationA process may be created in the system for different operations. Some of the events that lead to process creation are as follows −User request for process creationSystem InitializationBatch ... Read More

A deadlock happens in operating system when two or more processes need some resource to complete their execution that is held by the other process.In the above diagram, the process 1 has resource 1 and needs to acquire resource 2. Similarly process 2 has resource 2 and needs to acquire ... Read More

Semaphores are integer variables that are used to solve the critical section problem by using two atomic operations, wait and signal that are used for process synchronization.The definitions of wait and signal are as follows −WaitThe wait operation decrements the value of its argument S, if it is positive. If ... Read More

Monitors and semaphores are used for process synchronization and allow processes to access the shared resources using mutual exclusion. However, monitors and semaphores contain many differences. Details about both of these are given as follows −MonitorsMonitors are a synchronization construct that were created to overcome the problems caused by semaphores ... Read More

Interprocess communication is the mechanism provided by the operating system that allows processes to communicate with each other. This communication could involve a process letting another process know that some event has occurred or transferring of data from one process to another.One of the ways to manage interprocess communication is ... Read More