C-SCAN Scheduling (Circular SCAN) is a disk scheduling algorithm used to manage how data is read from a disk. It operates by moving the disk arm in one direction, servicing requests until it reaches the end of the disk. Once it reaches the end, the arm quickly returns to the beginning without servicing any requests during this return trip. This method ensures that all requests are handled in a fair manner, reducing wait times for requests located near the outer edges of the disk. C-SCAN is particularly effective in environments with a high volume of read/write operations, as it maintains a consistent response time.