Operating System (OS) is basically a software program that manages and handles all resources of a computer such as hardware

Abstract  Sockets are used for communication in client-server systems. The kernel is part of the operating system which resides in

Abstract An operating system is a user interface i.e. a program that acts as an interface between the user and

A program consists of instructions in any programming language. A process consists of instructions in machine code. A program in

Virtual memory is a technique that allows the execution of processes that are not completely in memory.  If there is

The full form of RAID is a redundant array of independent disks. It employs techniques of striping, mirroring, or parity

In a multiprogramming environment, several processes may compete for a finite number of resources. A process requests resources and if

Fragmentation is the problem that arises in contiguous allocation. In fragmentation, memory splits into many small pieces and some part

Spooling(Simultaneous peripheral operations on line) is a buffering mechanism. Spooling operates the I/O of one job with the computations of

Semaphore uses two atomic operations: wait and signal to solve critical section problems. Scope This article explains semaphore, mutex, and