Describe how data is transmitted using half-duplex serial data transmission.

Answers

Answer 1
Answer:

Half-duplex serial data transmission allows for communication in both directions, but only one direction at a time. In applications such as walkie-talkies and traditional telephone systems.

In half-duplex serial data transmission, data is transmitted in one direction at a time

1. Sender initiates transmission: The sender, also known as the transmitter, starts the data transmission process. It prepares the data to be sent and waits for the appropriate time to start transmitting.

2. Sender sends data: The sender begins sending the data in a sequential manner. It breaks down the data into smaller units called frames or packets.

3. Receiver acknowledges receipt: After receiving each frame, the receiver acknowledges its successful reception to the sender.

4. Sender waits for acknowledgment: Upon sending a frame, the sender waits for the receiver's acknowledgment. If an acknowledgment is received, the sender proceeds to send the next frame.

5. Receiver processes the data: The receiver receives the frames and processes the data within each frame. It checks for errors using techniques like checksums or cyclic redundancy checks (CRC).

6. Roles switch for bidirectional communication: Once the sender finishes transmitting its data, the roles switch and the receiver becomes the sender, initiating its own transmission.

7. Communication continues: The process continues as the receiver sends its data and waits for acknowledgments, while the new sender processes the received data and sends acknowledgments.

Overall, half-duplex serial data transmission allows for communication in both directions, but only one direction at a time. This type of transmission is commonly used in applications such as walkie-talkies and traditional telephone systems.

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Answer 2
Answer:

Answer:

In half duplex mode, the signal is sent in both directions, but one at a time. In full duplex mode, the signal is sent in both directions at the same time. In simplex mode, only one device can transmit the signal. In half duplex mode, both devices can transmit the signal, but one at a time.


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Answer:

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Answers

Answer:

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This assignment deals with Logical Equivalences. Review section 1.7 of the text before completing the assignment. The assignment may be handed in twice before it is graded. Consider the statements in the left column of the tables below. Translate each into a propositional statement. In the box below, indicate which two statements are logically equivalent. The gray shaded box is the Equation editor that should be used to enter the propositional expression.Question 1
Statement Reason
Whenever there is a puppy in the house, I feel happy
If I am happy, then there is a puppy in the house
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Question 2
Statement Reason
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Answers

Answer:

Question (1) the statements (i) and( iv) are logically equivalent and statements (ii) and (iii) are logically equivalent. Question (2) the statements (i) and (iii) are logically equivalent.

Explanation:

Solution

Question (1)

Now,

Lets us p as puppy in the house, and q as i am happy

So,

p : puppy in the house,  and q : i am happy

Thus,

The Statements

(i) so if there is a puppy in the house, I feel happy :  p -> q

(ii) If I am happy, then there is a puppy in the house : q -> p

(iii) If there is no puppy in the house, then I am not happy.   : ~ p -> ~q

(iv) If I am not happy, then there is no puppy in the house : ~q -> ~p

Hence, the statements (i) and( iv) are logically equivalent and statements (ii) and (iii) are logically equivalent.

Question (2)

Let us denote p as i am in school today, and q as i am in CSC231 class, and r as i am in civics class,

So,

p: i am in school today, q: i am in CSC231 class, r: i am in civics class,

Now,

(i) if I am in school today, then I am in CSC231 class  :p -> q

(ii) If I am not in school today, then I am not civics class  :~p -> ~r

(iii) If I am not in CSC231 class, then I am not in school today  :~q -> ~p

(iv) If I am in CSC231 class, then I am in school today  : q -> p

Therefore, the statements i) and iii) are logically equivalent.

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