Assignment Content

1. Question 1

In virtually all systems that include DMA modules, DMA to main memory is given higher priority than CPU access to main memory. Why? 

Question 2

When a device interrupt occurs, how does the processor determine which device issued the interrupt? 

Question 3

A system is based on an 8-bit microprocessor and has two I/O devices. 

• The I/O con- trollers for this system use separate control and status registers. 
• Both devices handle data on a 1-byte-at-a-time basis. 
• The first device has two status lines and three control lines. 
• The second device has three status lines and four control lines. 
• How many 8-bit I/O control module registers do we need for status reading and control of each device? 

  ***Explain your reasoning and show your mathematical calculations on how you derived your answer 

• Question 4

  A system is based on an 8-bit microprocessor and has two I/O devices. 

• The I/O con- trollers for this system use separate control and status registers. 
• Both devices handle data on a 1-byte-at-a-time basis. 
• The first device has two status lines and three control lines. 
• The second device has three status lines and four control lines. 
• What is the total number of needed control module registers given that the first device is an output-only device? 

  ***Explain your reasoning and show your mathematical calculations on how you derived your answer 

• Question 5

  A system is based on an 8-bit microprocessor and has two I/O devices. 

• The I/O con- trollers for this system use separate control and status registers. 
• Both devices handle data on a 1-byte-at-a-time basis. 
• The first device has two status lines and three control lines. 
• The second device has three status lines and four control lines. 
• How many distinct addresses are needed to control the two devices? 

  ***Explain your reasoning and show your mathematical calculations on how you derived your answer 

• Question 6

  Consider a microprocessor that has a block I/O transfer instruction such as that found on the Z8000. 

• Following its first execution, such an instruction takes five clock cycles to re-execute.
•  However, if we employ a nonblocking I/O instruction, it takes a total of 20 clock cycles for fetching and execution. 
• Calculate the increase in speed with the block I/O instruction when transferring blocks of 128 bytes. 

  **Explain your reasoning and show your mathematical calculations on how you derived your answer 

• Question 7
• What is the difference between memory-mapped I/O and isolated I/O? 

 The  Sports Business Research Network (www.sbrnet.com) is a market research  and publications database that lists and provides information on sports  organizations, teams, corporate sponsors, sports agents, marketing and  event management agencies, and media companies around the world. The  APUS Online Library has a subscription to the SBRnet database. If you  have trouble accessing SBRnet, feel free to select the APUS Library and  “Contact Us” for assistance. To access SBRnet from the Library homepage,  click  on the tab at the top titled “RESEARCH” and then click on “Databases  (Articles & eBooks)” under the heading of Research Tools. Finally,  click on “S” under “Library Databases from A to Z” and you will find  SBRnet. 

 Part I:  Using  this SBRnet  source, assemble your viewpoint on a local, national, and global issue  in sport based on both your personal observations and articles from the  SBRnet. The issue may be the same topic at the local, national, and  global level, or you could choose a different topic for your local area,  nation, and globe.  

 Part II:  Look up at least one article for the local, the national, and the  global issue in the SBRnet .  Provide a brief description of each of the three issues. The local,  national, and global topic should each be described with a minimum of  200 words for a total of 600 words combined .
 

 Pricing  strategy varies significantly across different market structures. The  pricing guidelines in a monopoly market are relatively straightforward.  Since the company is the only producer offering the product, it can  mark-up the price as far as the customer can bear. The pricing  strategies for a producer operating in a perfect competition structure  are also fairly intuitive. They are price takers, and hence price is set  at the marginal cost of the product. This is due to the fact that there  are many firms offering nearly identical products. However, there is  optimal pricing for the market structures offering differentiated  products with many competitors (oligopoly) or a few producers  (monopolistic competition). These are much more complex and involved. It  has been stated that differentiation in products that creates  differences in customer valuation is the most prevalent type of  competition. In such markets pricing strategies may include the three  C’s of cost, competition, and customer. 

 Develop a  response detailing an analysis of market structures and relating pricing  strategies that are suitable for each of these structures. Furthermore,  include a real world example of pricing strategy for a specific company  by identifying its market structure.  

 Cover page with a running head 

Abstract

1. Perfect Competition

1.1. Description

1.2. Pricing Strategies

2. Monopolistic competition

2.1. Description

2.2. Pricing Strategies

3. Oligopoly 

3.1. Description

3.2. Pricing Strategies

4. Monopoly

4.1. Description

4.2. Pricing Strategies

5. Case Study

6. Conclusion

References 

needs to  include at least three scholarly sources, i.e. peer reviewed articles. I  strongly recommend the use of the APUS library for these sources, as  most acceptable resources can only be found in protected databases. 

Please answer each question separately. One question per page two references

Question 1

 briefly discuss what legally constitutes exigent circumstances regarding  searches and seizures. In addition, provide examples of police conduct  that do not fall under the exigent circumstances rule and would  therefore be in violation of the Fourth Amendment. 

Q2

 briefly discuss the impact of the Edwards Rule pertaining to police  interviewing and interrogation. In doing so, briefly provide an overview  of the U.S. Supreme Court case, Edwards v. Arizona, 451 U.S. 477  (1981).  

Q3

 briefly discuss the impact of forensic evidence on criminal justice case  processing. In doing so, also briefly discuss biometric analysis as it  may pertain to criminal investigations.  

Q4

 briefly list and provide an overview of a few of the different types of  sex crimes. In doing so, briefly discuss how an investigator should  approach a possible sexual assault investigation.