International Journal of Computer Informatics & Technological Engineering

Number 2348-8557, 2015

37-41
COMPARATIVE STUDY OF VARIOUS CELLULAR PHONE OS IN CURRENT WORLD

Authors: Devendra Singh Kushwaha 1 and Dr. Vikash Kumar Singh 2 1,2 Assistant Professor, Department of Computer Science, Indira Gandhi National Tribal University(IGNTU), Amarkantak

Abstract

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Many people have adequate knowledge about different mobile phones and their companies but a very few of them know something about operating systems. It is very important to know about different mobile OS used by a number of companies so that we can actually know that what is behind our smartphone’s smooth and colourful touchscreen. The main purpose of this study is to discuss the different comparative studies on mobile operating system. Now a day's different mobile phone companies are competing in the market each having its own hardware and software. Each company mobile phone has its own interface and they are looking to provide new features to their customers. Each company use different operating system like Apple using iOS, Samsung using Android and Nokia using Symbian. In this study we will discuss about the various mobile technologies along with the different mobile operating systems available in the market and the difference between them.

42-48
DEADLINE CONSTRAINED SCIENTIFIC WORKFLOW SCHEDULING WITH RANKING AND REPLICATION OF TASKS

Authors: Nallakumar. R 1, Dr. N. Sengottaiyan 2, Sruthi Priya K.S 3 1Teaching Fellow, 3 PG Scholar Department of CSE, Anna University Regional Centre, Coimbatore, India 1 2 Professor, Depatment of CSE, Indira Institute of Engineering and Technology, Thiruvallur, Chennai, India

Abstract

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The emergence of Cloud computing in distributed systems for service provisioning stimulates the analysts and researchers in executing exploratory scientific applications such as workflows. The most demanding issues in the Clouds are workflow scheduling, which expects to fulfil the Quality of Service of the user like a deadline along with the cost reduction of workflow execution. An already prevailing work on workflow scheduling algorithm is in view of Partial Critical Paths which endeavour’s to reduce the workflow execution cost and attempts to execute within the user-defined deadline and it is done only in a single cloud where ample resources won’t be present to fulfil the user demand. In that case cloud providers will continue to process the user demands in order to increase their revenue. To address this problem, a novel replication aware dynamic workflow scheduling is introduced to the thought of ranking of tasks along with task replication for multi cloud and it dynamically allocates the workflows across multiple cloud domains by satisfying the Quality of Service requirement of the users.