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Question: Consider the following sequential circuit:

There are two points X and Y with respect to which the following four states of the machine are identified according to the presence and absence of current at these points:

q0(X=0, Y=0) = (0,0)

q1 (X=0, Y=1) = (0,1)

q2 (X=1, Y=0) = (1,0)

q3 (X=1, Y=1) = (1,1)



a. Write down the expressions to find out new X, new Y and output?

b. Calculate all the values of the respective transition table for a mealy machine?

c. Draw the resulting mealy machine from the transition table (calculated in step b)?


 Theory of Automata CS402 VU Assignment No. 4 Spring 2012 Solution

, you were asked to develop use-case model and data flow diagram for HealthCare Sale Management System. Continuing further, you are now required to draw sequence diagrams for the some of the use cases identified in previous assignment. Remember that this assignment is based on solution of your previous assignment (Assignment 2). Description: Advance HealthCare is a medicine manufacturer company which manufactures medicines and sells to its customers. Advance HealthCare wants to develop an online system which will facilitate to manage the routine tasks of medicine sales and will convert the manual working in a computerized system. The system is meant to manage almost every aspect of the medicine sale system such as maintaining the stock record of the medicine, suppliers/companies accounts, purchase record, customer (patient) record, sales invoice generation, employees’ record etc. This system will maintain all the sales of medicines to customer and purchase from supplier. The medicine stock will be managed along with their batch numbers, expiry date, rate and quantity. When the medicine is purchased, and record is entered, the stock record will be updated immediately. The system will also handle the accounts including payments to suppliers and receiving from customers. The proper ledgers of every account will be maintained. The system will also help in maintaining the employees’ record that includes storing their name and other particulars along with their salary package. The system will generate many sophisticated reports including stock reports, ledger prints and rate lists. The system will not generate any advanced accounting reports as trial balance, balance sheet, Operating Expense Report and worksheets. The System should be user friendly, technology independent and platform independent. The System service should have availability most of the time in the day. It must be capable of supporting multiple users at a time without affecting the performance. It should be able to complete its on-going operations in spite of any error or problem within defined response time. Question: You are required to draw Sequence Diagrams for the following two Use Cases: 1) Add Account HINT: Using this use case, the manager will be able to add new account into the system. 2) Update Item HINT: This use case will allow the user to update the information for an item (medicine) in the inventory.

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 Data Warehousing CS614 Assignment No. 03 Semester Spring June 2012 virtual university of Pakistan
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  Data Warehousing CS614 Assignment No. 03

Assignment No. 03
Semester Spring 2012
Data Warehousing-CS614



Q: Write SQL statements to construct the “Star Schema” given on the next page? Guidelines are given below:


Guidelines
• Use appropriate data types for the table attributes.
• Show the Primary/Foreign key constraints.
• Do not send the archived file (.rar etc).

"“Explain how measure of central tendency and measure of dispersion are complementary to each other to describe the data”


STA301 Statistics and Probability GDB spring May  2012

 Software Engineering-II  CS605 VU Current Assignment No. 4 Spring June 2012  Solution Soon

Part a) 08 Marks Refer to section Computer to Computer connectivity via PPI in your course handouts…You have studied in this course that using parallel port, we can transmit One Byte at once and thus it is faster than serial communication. You can also find the details of the procedure that describes how to achieve communication via parallel port between two computers. It is amazing to see that in this protocol, Byte is not transmitted as a whole; rather it is transmitted in the form of Nibbles. You are required to answer the following question. Is it possible to transmit One Byte data at once via PPI between two computers? If yes then How and if not then why? Part b) 12 Marks Represent the following given digital numbers in packed BCD format and also tell how much memory (Bytes) will be required for its storage. Give answers by filling the following table with desired information. S.No. Given Number Required memory (Bytes) in ASCII BCD representation in Hexadecimal format Required memory (Bytes) in packed BCD 1. 0x123456 (in Hexadecimal) 2 123456 (in Decimal)



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 System Programming CS609 Assignment No. 03

Q. 1. Suppose you have been asked to give a proposal of a Local Area Network for a company which requires easy reconfiguring, efficient in speed and economical in cost network. Considering these three factors, which guided media you will prefer for this type of network? Give three good reasons to support your answer. (2 Marks for suggestion/name of media and 3 marks for three reasons) [2+3 = 5] 




 Q. 2. Analog signals are considered more prone to Noise as compared to digital signals. Suggest a proper method or technique with its complete steps for a telecommunication company which wants to convert its analog signals in digital signal to avoid from noise. Note: just name the technique and its steps, detail is not required. [5 Marks] 




 Q. 3. In Data Communication, situations exist where we need to change the Digital Signals into Analog Signals. Select the technique(s) which is/are used by modems for this purpose. Choose all that apply. [10 Marks] 


1. B8ZS 2. Quantization Amplitude Modulation 3. Amplitude Shift Keying 4. Frequency Shift Keying 5. Frequency Modulation 6. Frequency Reducing Key 7. Frequency Division Multiplexing 8. Phase Shift Keying 9. Phase Modulation 10. Quadrature Amplitude Modulation 11. Manchester Encoding Scheme 12. 4 PSK


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 Data Communication CS601