In devices with a moving coil there are no pre-fixed positions. Instead, they use a special guidance system (positioning), which accurately brings the heads to the desired track.
The system of precise guidance of the heads on the tracks is called a servo drive, and for its operation a feedback signal is required that carries information about the real relative position of the tracks and heads.
Temperature fluctuations do not affect the accuracy of the drive. When compressing and expanding disks (rotation, temperature), all changes in their sizes are monitored by a servo drive and the positions of the heads are adjusted. Continue reading
The composition of the computer equipment used in the office is traditional and is determined by the typical tasks facing employees. Modern business requires the automation of accounting and warehouse accounting, billing and receiving (sending) messages electronically to suppliers and customers. For the effective work of employees, the rational use of computer equipment, a local area network (LAN) is being created. Continue reading