What is IT infrastructure? Briefly explain the concept of grid computing

A Management Information System ICT Revision Questions and Answers

Answer

IT infrastructure is the shared technology resources that provide the platform for the firm‘s specific information system applications. IT infrastructure includes hardware, software and services that are shared across the entire firm. Major IT infrastructure components include computer hardware platforms, operating system platform, enterprise software platforms, networking and telecommunications platforms, database management software, internet platforms, and consulting services and systems integrators.
Grid computing is a term referring to the federation of computer resources from multiple administrative domains to reach a common goal. The grid can be thought of as a distributed

system with non-interactive workloads that involve a large number of files. What distinguishes grid computing from conventional high performance computing systems such as cluster computing is that grids tend to be more loosely coupled, heterogeneous, and geographically dispersed. Although a grid can be dedicated to a specialized application, it is more common that a single grid will be used for a variety of different purposes. Grids are often constructed with the aid of general-purpose grid software libraries known as middleware.
Grid size can vary a considerable amount. Grids are a form of distributed computing wherea “super virtual computer” is composed of many networked loosely coupled computers acting together to perform very large tasks. For certain applications, ―distributed‖ or ―grid‖ computing, can be seen as a special type of parallel computing that relies on complete computers (with onboard CPUs, storage, power supplies, network interfaces, etc.) connected to a network (private, public or the Internet) a conventional network interface, such as Ethernet. This is in contrast to the traditional notion of a supercomputer, which has many processors connected a local high- speed computer bus



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