Engineering and Technology Journal

Abstract

Many applications with real-time demands are composed of mixed sets of
tasks with a variety of requirements. These can be used in the form of standard
timing constraints or flow of data. Therefore you need real time multitasking
operating system to guarantee within a fixed amount of time. Scheduling
Algorithm for real-time multitask operating system is implemented according to
the priority of tasks depending on nature of their jobs and need to resource or time.
The Scheduling algorithm which used here is event driven, not clock driven.
It is necessary in data communication system which is an example of real
time system to record the received messages for documentation and for further use
like for simulation or computation or reply them. The time which saved with each
message is important to be close to the real situation. The system is written in C++
programming language under DOS environment.