Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > We describe a protocol of input device commun...
Start Learning for Free
We describe a protocol of input device communication below:
i) Each device has a distinct address.
ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicate
iii) The device ready to communicate leaves its data in the I/O register
iv) The data is picked up and the controller moves to the step a
Identify the form of communication best describes the I/O mode amongst the following:
i) Each device has a distinct address.
ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicate
iii) The device ready to communicate leaves its data in the I/O register
iv) The data is picked up and the controller moves to the step a
Identify the form of communication best describes the I/O mode amongst the following:
- a)Programmed mode of data transfer
- b)DMA
- c)Interrupt mode
- d)Polling
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
We describe a protocol of input device communication below:i) Each dev...
Answer: d
Explanation: In polling the processor checks each of the device if they wish to perform data transfer and if they do it performs the particular operation.
Explanation: In polling the processor checks each of the device if they wish to perform data transfer and if they do it performs the particular operation.
Most Upvoted Answer
We describe a protocol of input device communication below:i) Each dev...
Protocol of Input Device Communication:
The given protocol describes the communication process between the input devices and the BUS controller. Let's break down the steps of the protocol:
i) Each device has a distinct address:
In this step, each input device is assigned a unique address. This address serves as an identifier for the device during communication with the BUS controller. Having distinct addresses ensures that the controller can differentiate between multiple devices.
ii) The BUS controller scans each device in sequence of increasing address value:
The BUS controller scans the devices one by one in a sequential order based on their increasing address values. This scanning process allows the controller to check if any device wants to communicate.
iii) The device ready to communicate leaves its data in the I/O register:
When a device is ready to communicate, it leaves its data in the Input/Output (I/O) register. The I/O register acts as a temporary storage location for the data being transferred between the device and the controller.
iv) The data is picked up and the controller moves to the next step:
Once the data is left in the I/O register, the BUS controller picks it up and proceeds to the next step of the communication process.
Form of Communication:
Based on the given protocol, the form of communication that best describes the I/O mode is polling. Here's why:
a) Programmed mode of data transfer:
In programmed mode, the data transfer is initiated and controlled by the program running on the CPU. However, in the given protocol, the communication is initiated by the BUS controller scanning the devices, not by the program.
b) DMA (Direct Memory Access):
DMA is a method where the input/output devices can directly access the main memory without involving the CPU. However, the given protocol does not mention any direct memory access or involvement of input/output devices in accessing the memory.
c) Interrupt mode:
In interrupt mode, the input devices send interrupt signals to the CPU to request attention or inform about a specific event. However, the given protocol does not mention any interrupt signals or involvement of the CPU in the communication process.
d) Polling:
Polling is a method where the BUS controller actively scans each device to determine if it wants to communicate. This is exactly what the given protocol describes in step ii. The controller sequentially checks each device to see if it wishes to communicate, which aligns with the concept of polling.
Therefore, based on the given protocol of input device communication, the most suitable form of communication is polling.
The given protocol describes the communication process between the input devices and the BUS controller. Let's break down the steps of the protocol:
i) Each device has a distinct address:
In this step, each input device is assigned a unique address. This address serves as an identifier for the device during communication with the BUS controller. Having distinct addresses ensures that the controller can differentiate between multiple devices.
ii) The BUS controller scans each device in sequence of increasing address value:
The BUS controller scans the devices one by one in a sequential order based on their increasing address values. This scanning process allows the controller to check if any device wants to communicate.
iii) The device ready to communicate leaves its data in the I/O register:
When a device is ready to communicate, it leaves its data in the Input/Output (I/O) register. The I/O register acts as a temporary storage location for the data being transferred between the device and the controller.
iv) The data is picked up and the controller moves to the next step:
Once the data is left in the I/O register, the BUS controller picks it up and proceeds to the next step of the communication process.
Form of Communication:
Based on the given protocol, the form of communication that best describes the I/O mode is polling. Here's why:
a) Programmed mode of data transfer:
In programmed mode, the data transfer is initiated and controlled by the program running on the CPU. However, in the given protocol, the communication is initiated by the BUS controller scanning the devices, not by the program.
b) DMA (Direct Memory Access):
DMA is a method where the input/output devices can directly access the main memory without involving the CPU. However, the given protocol does not mention any direct memory access or involvement of input/output devices in accessing the memory.
c) Interrupt mode:
In interrupt mode, the input devices send interrupt signals to the CPU to request attention or inform about a specific event. However, the given protocol does not mention any interrupt signals or involvement of the CPU in the communication process.
d) Polling:
Polling is a method where the BUS controller actively scans each device to determine if it wants to communicate. This is exactly what the given protocol describes in step ii. The controller sequentially checks each device to see if it wishes to communicate, which aligns with the concept of polling.
Therefore, based on the given protocol of input device communication, the most suitable form of communication is polling.
Attention Computer Science Engineering (CSE) Students!
To make sure you are not studying endlessly, EduRev has designed Computer Science Engineering (CSE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Computer Science Engineering (CSE).
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Top Courses for Computer Science Engineering (CSE)View all
We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer?
Question Description
We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer?.
We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer?.
Solutions for We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE).
Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.
Here you can find the meaning of We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice We describe a protocol of input device communication below:i) Each device has a distinct address.ii) The BUS controller scans each device in sequence of increasing address value to determine if the entity wishes to communicateiii) The device ready to communicate leaves its data in the I/O registeriv) The data is picked up and the controller moves to the step aIdentify the form of communication best describes the I/O mode amongst the following:a)Programmed mode of data transferb)DMAc)Interrupt moded)PollingCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.
|
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup