Magnetic disk
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Magnetic disks store data on magnetic platters that are spun by a spindle. A read/write head moves across the platters via an actuator to write data by magnetizing patterns on the surface and read data by detecting the magnetic polarity of patterns. The head, actuator, and ribbon cable connecting the disk to the motherboard work together to allow the disk to write electronic pulses as magnetic patterns and read those patterns as electrical currents.
Magnetic disk
- 1. MAGNETIC DISK PRESENTATION BY PRAMOD POUDEL
- 2. INTRODUCTION Storage device that uses magnetization process Stores data in tracks and sectors Consist of Platter: made by nonmagnetic materials covered by magnetizable materials Spindle: rotate platter Head: read and write data bit Actuator: moves the head arm Ribbon cable: connects motherboard and magnetic disk PRESENTATION BY PRAMOD POUDEL 1
- 3. PRESENTATION BY PRAMOD POUDEL 2
- 4. WORKING MECHANISM To write Electronic pulse are sent to head Produce magnetic field Resulting magnetic patterns are recorded To read Surface under the head produces current Produced current is of same polarity as recorded PRESENTATION BY PRAMOD POUDEL 3
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- 6. PRESENTATION BY PRAMOD POUDEL 5 Any Questions
- 7. PRESENTATION BY PRAMOD POUDEL 6