Description: L-6.6: SCAN Algorithm in Disk scheduling with Example | Operating System, SCAN Disk Scheduling Algorithm, SCAN Disk scheduling algorithm in OS, L-6.8: C-SCAN Algorithm in Disk scheduling with Example | Operating System
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In mathematics and computer science , an algorithm ( i / ˈ æ l ɡ ə r ɪ ð əm / AL -gə-ri-dhəm ) is a self-contained step-by-step set of operations to be performed. Algorithms exist that perform calculation , data processing , and automated reasoning .
The words 'algorithm' and ' algorism ' come from the name al-Khwārizmī. Al-Khwārizmī ( Persian : خوارزمي , c. 780-850) was a Persian mathematician, astronomer , geographer , and scholar.
An algorithm is an effective method that can be expressed within a finite amount of space and time and in a well-defined formal language for calculating a function . Starting from an initial state and initial input (perhaps empty ), the instructions describe a computation that, when executed , proceeds through a finite number of well-defined successive states, eventually producing "output" and terminating at a final ending state. The transition from one state to the next is not necessarily deterministic ; s