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What is a IT Infrastructure?
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Provides the foundation on which the firm can build its specific information systems.
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List and explain the five infrastructure components.
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1. Computer Hardware- consists of technology for computer processing. This includes large mobile devices for accessing corporate data and the internet.
2. Computer Software- includes both system software and application software. Processing an order or generating a mail list.
3. Data Management Technology- Specialized software that organizes data and make it available to users.
4. Networking and Telecommunications Technology- provides data, voice, and video connectivity to users. Includes running a company’s internal network.
5. Technology Services- managing the other infrastructure components and training employees in how to use these technologies for their work.
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Give short explanations of autonomic computing and web services.
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A. Web Services- A set of loosely coupled software components that exchange information with each other using the internet. Can exchange information between operating systems or programming languages. The World Wide Web is an example of a web service.
b. Autonomic Computing- An industry-wide effort to develop systems that can configure themselves. Systems can fix themselves when broken, protect themselves from hackers, tune themselves, etc. McAfee is an example, you can see you computer automatically updating every day.
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Give short explanations of cloud computing and mashups and widgets.
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C. Cloud Computing- Firms and individuals obtain computing resources and software applications over the internet. Can be accessed by desktop computers, notebooks mobile devices, etc. Salesforce.com which sells software applications as services deliver over the internet.
d. Mashups and Widgets- mixing and matching software components to create your own customized application. Personalizing your facebook page is an example.
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Give short explanations of virtualization and operating systems.
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A. Virtualization- Presents a set of computing resources so that they can all be accessed in ways that are not restricted by physical configuration or geographical location. A network of hospitals managing more than 2,000 servers in 8 data centers.
b. Operating System- Software that manages and controls the computer’s activities. Keeping track of each computer job and who is using the system is an example.
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Give short explanation of SaaS and HTML.
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C. Software as a Service (Saas)- Services for delivering and providing access to software remotely as a web-based service. Salesforce.com which provides on-demand software services for CRM.
d. Hypertext Markup Language (HTML)- A page description language for specifying how text, graphics, video, and sound are placed on a web page. Abdobe Dreamweaver is an example of an HTML.
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What is data warehouse?
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A database that stores current and historical data of potential interest to decision makes in the company.
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Give short explanation and example of DBMS and Data Mining.
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A. Database Management System (DBMS)
o A software for creating, storing, organizing and accessing data from a database. Microsoft Access is an example of a DBMS
b. Data Mining
o Provides insights into corporate data by finding hidden patterns and relationships in large databases. Virgin Mobile Australia uses data mining to enable management to determine the demographic profile of new customers and relate it to the handsets they purchase.
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Give short explanation and example of Data mart adn Data cleansing.
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C. Data Mart
o A subset of a data warehouse which is a highly focused portion of the organization’s data. A company might develop marketing and sales data marts to deal with customer info.
d. Data Cleansing
o A.K.A data scrubbing, consists of activities for detecting and correcting data in a database. In the case study the trouble with the terrorist watch-list database
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Give short explanation and example of Relational database and Primary key.
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A. Relational Database
o Organizes data into two-dimensional tables with columns and rows. For example a table for customers and a table for suppliers.
b. Primary key
o Unique identifier for all the info in any row of the table. You would uses the supplier’s number as a primary key
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Give a short explanation and example of Foreign key and OLAP.
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C. Foreign Key
o A look-up field to look up data about the supplier of a specific part. To find the address of the supplier.
d. Online Analytical Processing (OLAP)
o Allows users to view the same data in different ways using multiple dimensions. A matrix of actual sales stacked on top of a matrix of projected sales.
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