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3 years ago

Prove that the dual of the exclusive-OR gate is also itscomplement

Computers and Technology

1 answer:

Tresset [83]3 years ago

7 0

Answer:

Explanation:

The dual of a function means replace AND with OR and replace OR with AND.

XOR gate of A , B is

$A \, XOR\, B = AB' + A'B$

So, Dual of A XOR B is ( replace AND with OR and OR with AND)

$= (A+B')(A'+B)$

Complement of A XOR B is $(A XOR B) ' = (AB' + A'B) ' = ((A)' + (B')') ((A')' + (B)') = (A'+B)(A+B')$ (In finding compliment AND becomes OR and OR becomes AND ).

By inter changing the above product of terms

Complement of $A XOR B = (A + B') (A' + B)$

So, Dual of A XOR B = Complement of A XOR B.

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The ____ command is used to disconnect a datatable object from the database. (

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The delete from command I think

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3 years ago

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________ is the application of statistical techniques to find patterns and relationships among data for classification and predi

Finger [1]

Answer:

Data Mining

Explanation:

Data Mining is also called knowledge discovery.

It is a computer aided technique of searching and evaluating a bulk of data in order to obtain useful information.

This technique searches through the data to find hidden patterns and uses statistical methods to find relationship among data for finding predictive information and for classification of data.

This is a mixture of different disciplines which include machine learning, statistics and artificial intelligence and also some mathematical methods.

Often the useful information is extracted from enormous database using modeling technique which is used to build a model from instances of the data where the solution is known and later apply this model on the instances where the solution is unknown.

In unsupervised data mining, the data analysis is not done by using modeling technique. In other words the labels are provided in order not draw inferences and prediction from data sets. Example is clustering.

In supervised data mining the model is developed to make inferences and classification. Example is neural networks.
For example data mining is used in Medicine industry to provide more accurate diagnostics and treatments on the basis of patient's medical history , physical examination or different patient tests data.
Data mining also makes it possible to manage health resources more efficiently and cost-effectively by detecting risks, predicting diseases in certain sections of the population or predicting hospitalization duration.

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3 years ago

Assuming dataFile is an ofstream object associated with a disk file named payroll.dat, which of the following statements would w

svet-max [94.6K]

Answer:

dataFile << salary;

Explanation:

To write salary to a file (payroll.dat) using ofstream, you make use of the following instruction:

ofstream dataFile;

myfile.open ("payroll.dat");

myfile <<salary;

myfile.close();

This line creates an instance of ofstream

ofstream dataFile;

This line opens the file payroll.dat

myfile.open ("payroll.dat");

This is where the exact instruction in the question is done. This writes the value of salary to payroll.dat

myfile <<salary;

This closes the opened file

myfile.close();

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3 years ago

def transfer(bank, log_in, userA, userB, amount): ''' In this function, you will try to make a transfer between two user account

laiz [17]

Answer:

def transfer(bank, log_in, userA, userB, amount): ''' In this function, you will try to make a transfer between two user accounts. bank is a dictionary where the key is the username and the value is the user's account balance. log_in is a dictionary where the key is the username and the value is the user's log-in status. amount is the amount to be transferred between user accounts (userA and userB). amount is always positive. What you will do: - Deduct the given amount from userA and add it to userB, which makes a transfer. - You should consider some following cases: - userA must be in the bank and his/her log-in status in log_in must be True. - userB must be in log_in, regardless of log-in status. userB can be absent in the bank. - No user can have a negative amount in their account. He/she must have a positive or zero balance. Return True if a transfer is made. For example:

Explanation:

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2 years ago

What should you do if a headset plugged into your computer is not working properly?

Alex777 [14]

If a headset plugged into computer is not working properly than one can go for updating the device driver. The correct option is B.

<h3>What is a device driver?</h3>

A device driver is a type of software application that allows one hardware device (such as a computer) to communicate with another hardware device (such as a printer). A device driver is indeed referred to as a software driver.

A driver, also known as a device driver, is a collection of files that instructs a piece of hardware on how to operate by communicating with a computer's operating system.

Every piece of hardware, from internal computer components like your graphics card to external peripherals like a printer, requires a driver.

If a headset plugged into a computer is not working properly, the device driver can be updated.

Thus, the correct option is B.

For more details regarding device driver, visit:

brainly.com/question/14054807

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1 year ago

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