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Introduction to hard disk performance indicators

The performance indicators of the hard disk include capacity, speed, rotation speed, cache, response time, interface type, and reliability. Detailed introduction: 1. Capacity, the capacity of a hard disk refers to the amount of data it can store, usually in bytes; 2. Speed, the speed indicators of the hard disk include reading speed and writing speed, and the reading speed refers to the data transferred from the hard disk. The speed of reading data, and the writing speed refers to the speed at which data is written to the hard disk; 3. Rotation speed, the rotation speed of the hard disk refers to the speed at which the hard disk platters rotate, usually expressed in revolutions per minute (RPM); 4. Caching, etc.