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Overview of Hard Drive and Its Components
- 1. Overview of Hard Driveand Its Components By http://www.shopricom.com/
- 2. Hard Disk Drive Hard Drive is considered to be one of the most relevant parts of a computer. It is basically used to store files and valuable data into the computer. It was first introduced by IBM on September 13, 1956.
- 3. A computer user needs a hard drive for storing data and program files. Nowadays along with internal hard drive, external hard drive has become equally popular. Here some few example of relevant external hard drives like IBM 2TB hard drives, HP 652564B21 hard drive etc.
- 4. Hard Drive consistof six components • Head actuator • Read/Write actuator • Read/Write head • Spindle • Platter • Disk controller
- 5. Actuator It is an electronic device, which is maintained by a motor that moves the hard drive head arm.
- 6. Actuator arm Actuator arm, also known as the access arm it performs the operation of reading and writing data to the platter by utilizing its read/write head which stretches out over the platter.
- 7. Platter The discs which are placed one above the other are known as platters. It is basically made up of ceramic and aluminum materials . It is capable of holding large amount of data.
- 8. Read/Write head A read/write head performs the task of reading data from the hard drive's disk platter. Spindle It holds the hard drives platter in a fixed position.
- 9. The process ofreading and writing data on a hard drive Disk controller is responsible for interpreting the data which are sent to and from the computer. Whenever you open a file on your computer for editing, the disk controller instructs actuator to move the read/write arm and align the read/write head.
- 10. After editing the file when you click on the save option the arm use its write heads to overwrite the previous file. Now a days some hard drives operate at a speed of 7,200 rpm.
- 11.