Synthesis on Some Handled Computing Systems

A distributed system is one whose components located at networked computers communicate and coordinate their actions only by passing messages. New forms of distributed computing, Grid and Cloud Computing. Grid computing is providing an advanced computing and sharing processing powers, storage resources, and services from different geographical locations to solve large and computationally intensive problems. Where cloud computing is a set of network enabled services, providing scalable, QoS guaranteed, normally personalized, inexpensive computing infrastructures on demand, which could be accessed in a simple and pervasive way. We investigate the resource allocation problems and apply two algorithms to solve this problem, then we compare them to find the best solution.