The goal of the multi-programming system is to keep the CPU busy at all times. In a uni-processor system whenever the CPU becomes idle it is allocated to a new process. Which process will be allocated the CPU is decided by the short-term scheduler. CPU scheduling means to select the next process to be allocated …
One can perform two operations on a process in OS:
1. Process creation
2. Process Termination
A process during its execution can create many new processes
A scheduler selects one out of many available processes for execution by the CPU. There are different types of schedulers in operating system – long, short
Have you ever executed a process? Have your process changed states? In this post, we going to cover the notion of a process and process states. We will understand: what is a process? How to convert your program into a process? What are the different states of a process? and Where all the information related …
Operating system provides some services to the programs and to the users. These operating system services can be divided into two broad categories:
What is operating system? “An operating system is an interface between the user and the hardware.” Example: Windows, Android
Here we discuss some solved questions based on CPU Scheduling Algorithms. These problems have been asked in previous GATE examinations. Q1. Three process P1, P2 and P3 arrive at time zero. The total time spent by the process in the system is 10ms, 20ms, and 30ms respectively. They spent first 20% of their execution time …
Banker’s Algorithm – is a technique used for deadlock avoidance when there are multiple instances of a resource.
write() system call is used to write to a file descriptor. In other words write() can be used to write to any file (all hardware are also referred as file
Inter-process communication allows processes to exchange information. It allows programmers to coordinate activities among various processes