Essay about Mis(Laudon) Chap 5 Review Questions

3434 Words Oct 17th, 2011 14 Pages
ISYS104 Tutorial – week 6

Review Questions

1. What is IT infrastructure and what are its components?

Define IT infrastructure from both a technology and a services perspective.

• Technical perspective is defined as the shared technology resources that provide the platform for the firm’s specific information system applications. It consists of a set of physical devices and software applications that are required to operate the entire enterprise.
• Service perspective is defined as providing the foundation for serving customers, working with vendors, and managing internal firm business processes. In this sense, IT infrastructure focuses on the services provided by all the hardware and software. IT infrastructure is a set of
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Declining communication costs: Rapid decline in costs of communication and the exponential growth in the size of the Internet is a driving force that affects the IT infrastructure. As communication costs fall toward a very small number and approach zero, utilization of communication and computing facilities explodes.

Technology standards: Growing agreement in the technology industry to use computing and communication standards. Technology standards unleash powerful economies of scale and result in price declines as manufacturers focus on the products built to a single standard. Without economies of scale, computing of any sort would be far more expensive than is currently the case.

3. What are the current trends in computer hardware platforms?

Describe the evolving mobile platform, grid computing, and cloud computing.

Mobile platform: more and more business computing is moving from PCs and desktop machines to mobile devices like cell phones and smartphones. Data transmissions, Web surfing, e-mail and instant messaging, digital content displays, and data exchanges with internal corporate systems are all available through a mobile digital platform. Netbooks, small low-cost lightweight subnotebooks that are optimized for wireless communication and Internet access, are included.

Grid computing: connects geographically remote computers into a single network to create a “virtual supercomputer” by combining the computational power of all

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