Also known as the
Also known as the hard disk drive or HDD, the computer hard drive basically stores data. The least number of hard disk units a system can have is one. Larger computer systems can use up to a hundred hard drives. Unless tampered with, the basic function of a hard drive is to store information in digital form. As long as the information has entered into the HDD, it is safe even if power goes out. The position of the hard drive is toward the front of the computer in an air-tight casing. Downloaded Performance enhancing information from the Internet and other media can improve the performance of a hard drive. A folder in the HDD stores this information as temporary Internet files. With the information already on your hard disk you can easily gain access to the website of your choice whenever you are ready. Accumulating these temporary files on the computer tends to slow it down so they will need to be deleted from time to time. The IDE and SCSI stand as the recognized standards for transferring information between hard disk and the rest of the computer. Winchester is another name by which hard drives go. The name is the same as that of the first hard drive produced way back in the early 70s by IBM. Most desktop computers have as little as less than 10 gigabytes of storage and as many as 40. A byte is the unit for stored data in a hard drive, a collection of which is called a file. Representations of a byte can range from pixel colors to GIF imagery, from computer software applications to database records. The Central Processing Unit or the CPU of the computer only gets the stored information in byte form from the hard disk when it is needed. Magnetism is used extensively in a computer, especially by the hard disk to retrieve data from the platter that appears as small particles. The stored up information is made possible by the magnetic action of the head on the small particles as they move under the speedily spinning hard drive head.
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