Process Management Introduction

Process Management in OS A Program does nothing unless its instructions are executed by a CPU. A program in execution is called…

Types of Operating Systems An operating system is a well-organized collection of programs that manages the computer hardware. It is a type…

Resource Allocation Graph The resource allocation graph is the pictorial representation of the state of a system. As its name suggests, the…

Synchronization Mechanism without busy waiting All the solutions we have seen till now were intended to provide mutual exclusion with busy waiting.…

Round Robin Scheduling Algorithm Round Robin scheduling algorithm is one of the most popular scheduling algorithm which can actually be implemented in…

Translation Look aside buffer Drawbacks of Paging Size of Page table can be very big and therefore it wastes main memory. CPU…

RR Scheduling Example In the following example, there are six processes named as P1, P2, P3, P4, P5 and P6. Their arrival…

Tree Structured Directory In Tree structured directory system, any directory entry can either be a file or sub directory. Tree structured directory…

SCAN and C-SCAN algorithm Scan Algorithm It is also called as Elevator Algorithm. In this algorithm, the disk arm moves into a…

Test Set Lock Mechanism Modification in the assembly code In lock variable mechanism, Sometimes Process reads the old value of lock variable…