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Suppose a vending machine contains products, and users insert coins into the vending machine to purchase products. Draw a UML diagram showing the dependencies between the classes VendingMachine, Coin, and Product.
Use the unit 6 seminar/project case scenario (above) and use Visio 2007 to generate a diagram for the network topology. Briefly discuss which design would best fit the client's needs.
How would you recognize a physical DFD compared to a logical DFD? How do physical processes in a physical DFD differ from logical processes in a logical DFD? Give an example.
Search the Web for security education and training programs in your area. Keep a list and see which category has the most examples. See if you can determine the costs associated with each example. Which do think would be most cost-effective in terms ..
The system to be developed is intended to be operational in a small market firm or small business firm or even in home usage. Familiar examples might include an income tax preparation package by a small tax consulting firm.
Defend the role of the IT department as both a strategic and operational asset for the company.
Engine oil flows at a rate of 0.5 kg/s through a 2.5-cmID tube. The oil enters at 25°C while the tube wall is at 100°C.
Design an e?cient algorithm to handle a sequence of such operations.
write a program that reads a file containing two columns of floating-point numbers. prompt the user for the file name. print the average of each column in c++.
A machine has a 32 bit virtual address space and a 16kb page size. It has 1gb of physical memory. How many pages does a process have? How many bytes are needed for a page table, assuming 4 control bits and that disk addresses are stored elsewhere?
A client uses UDP to send data to a server. The data length is 16 bytes. Calculate the efficiency of this transmission at the UDP level (ratio of useful bytes to total bytes).
What are some of the benefits of modularity? 2. What is functional abstraction? 3. What is information hiding?
Water is circulated from a large tank through a filter, and back to the tank as shown in Fig. P14.30. The power added to the water by the pump is Determine the volumetric flow rate through the filter.
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