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Problem
A railroad crossing (RC) consists of one or more rail tracks that intersect a street. The crossing is protected by a gate that must be operated automatically in such a way that cars cannot enter the crossing While a train is going through it.
• Describe the structure of the railroad-crossing control system by showing its components and their interfaces.
• State clearly and precisely the requirements that should be satisfied by the system in order for it to operate safely and usefully. For instance, deciding to keep the gate always closed would be safe, but useless, since no car could ever cross the track.
• Which features of the system are likely to change in different contexts?
Make a circuit which gives the absolute value of a 4-bit binary number. Use four full adders, four multiplexers, and four inverters.
Construct the binary search tree for the following input stream, assuming no balancing or pivoting is done: Frodo, Bilbo, Smaug, Gandalf, Wormtongue, Denethor, Sauron, Galadriel, Aragorn.
as you prompt for a sale amount, do not proceed until the user has entered a nonnegative value. After a valid urchase object has been created, display the objects invice number, sale amount, and sales tax.
describe the business and the business problem. How does the business system work. Who is involved, and what do they do
In the unlikely event of any discrepancy between the Academic Regulations and any other publication, including this module guide, the Academic Regulations, as the definitive document, take precedence over all other publications and will be applied..
many lan administrators require frequent password changes. why? what do you think is the purpose for this practice?
Explain why the knowledge management systems could be so significant to the modern organization where organization could initiate such systems and for this initiative.
questionconsider following statements-double num1 num2 num3int int1 int2 int3double valuenum1 5.0 num2 6.0 num3
Write down a program that inputs a word from the keyboard and determines the length of the word. Print the word using twice the length as the field width.
Write an HTML document to provide a form that collects names and telephone numbers. The phone numbers must be in the format ddd-ddddddd.
During a maintenance process on the three-dimensional truss in Problem, the AB member is replaced with a member with the following properties.
What are some of the factors other then network itself that can cause the network to seem slow.
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