Question
What is the main purpose of disk scheduling in an
operating system?Solution
Disk scheduling is a crucial function in an operating system that aims to optimize the performance of disk I/O operations. The main purpose of disk scheduling is to prioritize and order disk I/O requests in a way that minimizes the seek time (the time it takes for the disk's read/write head to move to the correct track) and improves overall system performance. Different disk scheduling algorithms are used to achieve this, such as: • First-Come, First-Served (FCFS): Processes requests in the order they arrive, which can lead to inefficiencies if requests are scattered across the disk. • Shortest Seek Time First (SSTF): Chooses the request closest to the current head position to reduce seek time. • SCAN (Elevator Algorithm): Moves the disk arm in one direction, servicing requests until it reaches the end, then reverses direction. • C-SCAN (Circular SCAN): Moves the disk arm in one direction and, when it reaches the end, jumps to the beginning of the disk and continues servicing requests.
Combine List-I and List-II and select the correct answer from the code given below
Which deity is the most prominent in the 'Rig Veda'?
Where was the Second Buddhist Council convened?
King Ajatashatru belonged to which dynasty?
Building ‘Lotus Mahal’ and 'Mahanavmi Dibba' was a notable feature in the kingdom of:
The Indian Flag was designed by
Which dynasty did the Shishunaga dynasty follow in ruling Magadha?Â
Which Indus Valley civilization site located on the Tropic of Cancer did Radha visit?
Who established the Kanva Dynasty?
Who among the following Mughal commanders compelled Shivaji to sign the Treaty of Purandar (1665)?