Abstract: Now a day cloud computing plays an important role in internet era due to the a successive mobile applications cloud computing becomes more important it is the ultimate solutions for this mobile application cloud computing opens a new era for computing technology presently there are various web services through the different clouds some notable services are, Amazon web services, elastic compute cloud, Google cloud (dope box). The cloud computing offers huge opportunities of various web services to the internet users and mobile users; though there are many issues still to be covered in this paper represent survey of various cloud computing models.

Keywords: Cloud Computing, Cloud Service models, Cloud Deployment models.