Operating System

A process passes from number of states during its life, states are as follows-1) New state2) Ready state3) Running state4) Wait state5) Termination state6) Suspend … Read more

Prob. How many page faults will occur with a reference string 0,1,7,2,3,2,7,1,0,3?There are four frames which are initially empty.Use OPTIMAL Page replacement algorithm Sol. OPTIMAL … Read more

A filesystem is the methods and data structures that an operating system uses to keep track of files on a disk or partition, that is, … Read more

A system call is a mechanism that provides the interface between a process and the operating system. system calls allow the user programs to ask … Read more

1. Program execution: The operating system Loads program into memory It Handles the program’s execution It Provides a mechanism for process synchronization It Provides a … Read more

Memory Management: It keeps tracks of primary memory i.e what part of it are in use by whom, what part are not in use etc. … Read more

Some of the most widely used types of Operating system. Simple Batch System Multiprogramming Batch System Multiprocessor System Distributed Operating System Clustered System Realtime Operating … Read more

An operating system is a software which acts as an interface between computer user and the computer hardware.  It gives a person-pleasant surroundings in which … Read more

Why is operating system a mandatory software? There are different hardwares. Many more hardwares are about to come. Its not possible for each hardware to … Read more

Memory management is the functionality of an operating system which handles or manages primary memory and moves processes back and forth between main memory and … Read more