Part 5: The book shows a business organization chart in figure 2.5a (it's also in the Concepts and Architecture slide set.) Assume this is a fairly large company with more than three people in the Information Technology division. If you were asked to draw a detailed organization chart for IT, it would likely have many more boxes, including managers and employees for each department within IT. What abstraction mechanism is "zooming in" on a particular area called? (One word is enough.) Both the organization chart of figure 2.5a and the more detailed chart described above are abstractions of the organization of the company. Give an example of a case where the figure in the book would be more useful. Also give an example where the more detailed chart would be more useful.

Part 6: In your own words, explain what Nyquist's sampling theorem says, and explain the importance and implications of it to the storage and transmission of digital sound. In your answer, tell the effect of sample size on reproduced sound and also how sample size relates to storage and transmission.

0%20Computer%20Hardware%20System s%20Software%20&%20Network ng%20An%2 Courtesy Christopher Harting FIGURE 2.5(a) Business Organization Chart Corporate exec. management Marketing and sales Human Resources IT Finance System planning & development Sales Employment Accounting Financial System Administration Organizational development Advertising planning Purchasing Auditing 8 Planning User support Contracts Order Fulfillment control PART ONE AN OVERVIEW OF COMPUTER SYSTEMS 2.5(b) l View of a Business Application Architecture RE Marketin Information System Executive Information System