A Scheduler is a software which is used for schedule and track computer batch tasks or batch files processes. In computer system there are many running a security program or updating which are auto Schedule at specific times. In Operating system there are number of Job schedulers which are responsible also manage the job queue for a computer cluster. A Scheduler starts and handles jobs automatically by manipulating a prepared job control language algorithm or through communication with a human user. Scheduler program is is also provide a graphical user interface (GUI) and a single point of control for all tasks in a distributed PC network. In Scheduler there are some keys attributes are Constant, automatic tracking of jobs and completion notification Event-driven task scheduling Operation monitoring
Report scheduling.