Cloud computing and Grid computing

Cloud computing is the use of a 3rd party service(Web Services) to perform computing needs. Here Cloud depicts Internet . With cloud computing, companies can scale up to massive capacities in an instant without having to invest in new infrastructure. Cloud computing is benefit to small and medium-sized businesses. Basically consumers use what they need on the Internet and pay only for what they use. Cloud computing incorporates infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS) as well as Web 2.0 Cloud computing eliminates the costs and complexity of buying, configuring, and managing the hardware and software needed to build and deploy applications, these applications are delivered as a service over the Internet (the cloud).

Grid computing is a form of distributed computing whereby resources of many computers in a network is used at the same time, to solve a single problem. Grid systems are designed for collaborative sharing of resources. It can also be thought of as distributed and large-scale cluster computing Grid computing is making big contributions to scientific research, helping scientists around the world to analyze and store massive amounts of data by sharing computing resources 

Cloud   — Full private cluster is provisioned

— Individual user can only get a tiny fraction of the total resource pool

— No support for cloud federation except through the client interface

— Opaque with respect to resources

•Grid

— Built so that individual users can get most, if not all of the resources in a single request

— Middleware approach takes federation as a first principle

— Resources are exposed, often as bare metal