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Which of the following is known as the interval between the instant a computer makes a request for the transfer of data from a disk system to the primary storage and the instance the operation is completed?
- a)Disk utilization time
- b)Drive utilization time
- c)Disk access time
- d)Disk arrival time
Correct answer is option 'C'. Can you explain this answer?
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Which of the following is known as the interval between the instant a ...
The interval is referred to as the disk arrival time. It depends on several parameters. Generally, a computer makes a request and the operation is served.
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Which of the following is known as the interval between the instant a ...
Disk Access Time
Disk access time refers to the interval between the instant a computer makes a request for the transfer of data from a disk system to the primary storage and the instance the operation is completed. It is an important performance metric that determines the efficiency of data retrieval from a disk.
Key Points:
1. Definition: Disk access time is the time taken for a computer to access data from a disk system.
2. Request for Data Transfer: The access time begins when the computer sends a request to the disk system to transfer specific data to the primary storage.
3. Data Retrieval Process: The disk system then locates the requested data by rotating the disk's platters and moving the read/write heads to the appropriate position.
4. Seek Time: The seek time is the time taken by the read/write heads to move to the correct track on the disk.
5. Rotational Latency: Once the read/write heads are in position, the disk needs to rotate until the requested data reaches the read/write heads. This is known as rotational latency.
6. Transfer Time: After the data arrives at the read/write heads, it is transferred to the primary storage. This transfer time depends on the data transfer rate of the disk.
7. Completion: The access time ends when the data transfer is completed, and the requested data is available in the primary storage for the computer to use.
Significance:
- Disk access time is a critical factor in determining the overall performance of a computer system, especially when it involves frequent disk access operations.
- A shorter access time indicates faster data retrieval, leading to improved system responsiveness and reduced waiting time for users.
- It is important to optimize disk access time through various techniques such as disk caching, disk defragmentation, and efficient disk scheduling algorithms.
Conclusion:
Disk access time measures the interval between a computer's request for data transfer from a disk system to the completion of the operation. It encompasses seek time, rotational latency, and transfer time. By minimizing access time, a computer system can enhance its performance and provide faster access to data stored on disk systems.
Disk access time refers to the interval between the instant a computer makes a request for the transfer of data from a disk system to the primary storage and the instance the operation is completed. It is an important performance metric that determines the efficiency of data retrieval from a disk.
Key Points:
1. Definition: Disk access time is the time taken for a computer to access data from a disk system.
2. Request for Data Transfer: The access time begins when the computer sends a request to the disk system to transfer specific data to the primary storage.
3. Data Retrieval Process: The disk system then locates the requested data by rotating the disk's platters and moving the read/write heads to the appropriate position.
4. Seek Time: The seek time is the time taken by the read/write heads to move to the correct track on the disk.
5. Rotational Latency: Once the read/write heads are in position, the disk needs to rotate until the requested data reaches the read/write heads. This is known as rotational latency.
6. Transfer Time: After the data arrives at the read/write heads, it is transferred to the primary storage. This transfer time depends on the data transfer rate of the disk.
7. Completion: The access time ends when the data transfer is completed, and the requested data is available in the primary storage for the computer to use.
Significance:
- Disk access time is a critical factor in determining the overall performance of a computer system, especially when it involves frequent disk access operations.
- A shorter access time indicates faster data retrieval, leading to improved system responsiveness and reduced waiting time for users.
- It is important to optimize disk access time through various techniques such as disk caching, disk defragmentation, and efficient disk scheduling algorithms.
Conclusion:
Disk access time measures the interval between a computer's request for data transfer from a disk system to the completion of the operation. It encompasses seek time, rotational latency, and transfer time. By minimizing access time, a computer system can enhance its performance and provide faster access to data stored on disk systems.
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Which of the following is known as the interval between the instant a ...
Disk access time
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Which of the following is known as the interval between the instant a computer makes a request for the transfer of data from a disk system to the primary storage and the instance the operation is completed?a)Disk utilization timeb)Drive utilization timec)Disk access timed)Disk arrival timeCorrect answer is option 'C'. Can you explain this answer?
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