Serverless Computing Essay

Technology changes in 2010 made way for new opportunities and competition for eLoanDocs. Technology vendors like Amazon began to offer cloud computing. Cloud computing is a non-platform dependency network of virtualization, service-oriented architecture, grid computing, and utility computing that allows manipulating, configuring, and accessing applications online (Cain et al., p. 765). There is no evidence of trail to the host server.

Amazon: Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale computing easier for developers. Amazon EC2 is simple web service interface allows you to obtain and configure capacity with minimal friction. It provides you with complete control of your computing resources and lets you run on Amazon’s proven computing environment. Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements

Cloud computing offers services to users based on on-demand self-service, broad network access, measured service, resource pooling and rapid elasticity; These characteristics promise a faster time for implementation, lower cost, superior scalability and a better end user satisfaction. These services are delivered in models known as Software As A service (SaaS), Platform As A Service (PAAS), and Infrastructure As A Service (IAAS). The first layer which is the Software As A service (SaaS) is the layer in which software applications are delivered to end users. Below is the Platform As A Service (PAAS) layer which offers a platform on which applications can be developed. The lowest layer is the Infrastructure As A Service (IAAS) layer, in this layer the physical servers and network infrastructure is offered as a service. These services can be deployed throughout the internet (Public Cloud Computing), on the intranet infrastructure, (Private Cloud Computing), in a shared community of private networks (Community Cloud Computing), or a hybrid of both (Hybrid Cloud Computing). The service deployment models are [8]:

A cloud computing system, can be divided into two sections: the front end and the back end. They connect to each other through a network, usually the Internet. The front end is the side the computer user, or client, sees. The back end is the "cloud" section of the system. The front end includes the client's computer (or computer network) and the application required to access the cloud computing system.

Cloudlets are placed between the client application and cloud servers. By leveraging this cloudlet-based architecture, singular dependency on cloud servers to perform data processing is eliminated. Further, the computational requirement on the mobile devices can be limited to lightweight processing by offloading the heavyweight processes to the cloudlets

Once the internet became a viable medium for cloud-based computing, companies started offering applications to the masses. In early 2000’s, Amazon developed a cloud-based tool, Amazon Mechanical Turk, which offered cloud computing, data storage and artificial intelligence. Later, in 2006, Amazon released its second generation cloud services known as Elastic Compute Cloud (EC2) that allowed individuals and organizations to rent computing space to run all their computer applications and data storage needs. With EC2, Amazon had truly brought in to the concept of cloud computing. After that computer giants like Google, Microsoft and Apple began to offer affordable, useful applications for computers and smart devices that were able to on the cloud and not by the devises. Consequently, there are tens of thousands of such cloud-based applications available.

Cloud computing has been defined by NIST as a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or cloud provider interaction. Cloud computing can be considered a new computing paradigm insofar as it allows the utilization of a computing infrastructure at one or more levels of abstraction, as an on-demand service made available over the Internet or other computer network.

“Cloud Computing” is a buzzword that the IT industry has been talking about since the past few years. The future of computing is distributed and off-premise where remote servers handle terabytes of data every day. From both technical and social viewpoint, the concept of distributed data centers maintained by “server” companies somewhat dates back to 1990s where grid computing was actively thought upon as an IT requirement. Cloud Computing’s primary aim is provision of IT as-a-service to the cloud users on a utility-based delivery model envisioning greater storage availability, flexibility and scalability of IT systems.

Salesforce.com allows companies to eliminate the hardware and software needed for their internal network instead salesforce.com takes that responsibility. Companies only pay for what they need, upgrades are automatic and they can increase or decrease their services easily. Salesforce.com paved the way for both specialist and mainstream software firms to deliver applications over the internet. The next development in cloud computing was Amazon Web Services in 2002, which provided a suite of cloud-based services including storage, computation and human intelligence through the Amazon Mechanical Turk. Amazon Mechanical Turk holds a database of human intelligence tasks these are tasks that people can login to complete for money or credit. These tasks can range from organizing photos to debugging software. These are all task that can only be performed by people and not computers. In 2006, Amazon launched its Elastic Compute cloud (EC2) as a commercial web service that allows small companies and individuals to rent computers on which to run their own computer applications. Amazon EC2 presented a virtual computing environment, allowing companies to use web service instances with a variety of operating systems, they can load them with custom applications, manage their network’s access permissions, and run their service using as many or few systems as they desired. In 2009, Web 2.0 hit its stride, Google and others started to offer browser-based

Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. (Reference: http://www.nist.gov/itl/cloud/)

Amazon S3 is a secure, durable, high-scalable object storage. It is created to make a web

In this chapter, we will discuss the highlights of AWS and the design principles governing the cloud applications. We will also discuss the drawbacks of AWS. The chapter concludes with the trending technologies of AWS and some of its features.

“Cloud Computing‟ is the next natural step in the evolution of on-demand information technology services and products. To a large extent Cloud Computing will be based on virtualized resources” [2].

AWS can be used to store, retrieve large amount of data at any given time, anywhere from the cloud.

Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction[NIST].