The Type of Hard Drive

Hard disk is a data storage medium on a computer that is comprised of a collection of magnetic hard disk and rotating, as well as other electronic components. Hard disk uses a flat disk called a platter, which on both sides is coated with a material that is designed to be able to store information magnetically. Platter-platter are prepared by punching holes in the middle and arranged on a spindle. Platter spinning at a very high speed which is controlled by the spindle motor that is connected to the spindle. Electromagnetic literacy tool specifically named head mounted on a slider and is used to store information in a disk or read. Slider mounted on an arm, all of which are mechanically connected to a single set and connected to the surface of the disc through a device called the actuator. There was also the logic board set the activities of other components and communicate with the PC. Disk ATA / EIDE, hard disk with the type of EIDE (Enhanced IntegratedDrive Electronic) or type ATA (Advanced Technology Attachment) is the latest version of a standard disk interfaces that sesuaiuntuk connection to the bus, Many manufacturers have a range diskdengan disk interface EIDE / ATA, disk Such dapatdihubungkan directly to the PCI bus, which is used in banyakPC (personal computer). EIDE drives profit / ATA yangsignifikan is the price is quite cheap, karenapenggunaannya in the PC market. One drawback utamanyaadalah required separate controller for each drive if two drivedigunakan simultaneously to improve performance. One of the famous chip satuprodusen already includes templates to enable disk controller EIDE / ATA connected directly kemotherboard. Disk SCSI, many disk has a user interface that is designed for connection to standard SCSI bus. The disk tends to be more expensive, but have better performance, which is possible due to excess SCSI bus than the PCI bus. Concurrent access can be made to multiple disk drives because the interface drive is actively connected to the SCSI bus only when the drive is ready for data transfer. It is especially useful in applications where there are a large number of requests for small files, which often happens in a computer used as a file server. Disk RAID, promising outstanding performance and provide great storage and reliable. Disk is used both in high-performance computer or in systems that require reliability dramatically higher than normal levels. However, with the decline in prices to a more affordable level, the disk becomes more attractive even for a computer system to measure - average. Disk SATA, SATA hard disk with the type (Serial Advanced Technology Attachment), the disk interface ATA (Advanced Technology Attachment) with a serial version using thin wires which have a total small cable about two-thirds of the total cable with type EIDE hard drive or ATA disks are numbered SATA has 39 pins and very high speed data transmission as well as reducing the latency. So that the serial bus is capable of exceeding speed parallel bus. Disk SATA transfer data sequentially or through a serial cable and also developing their own techniques SATA disk connected to the motherboard without the system master or slave, thus SATA cables can only be used on a single hard disk. The type of hard disk that has been discussed, all fall into the category of internal hard disk, that is installed in the CPU. In addition there is also the internal hard disk external hard drive (hard disk that are outside the CPU), so it can be moved - to move. External hard disk has a rotation speed of 7200 rpm, very easy installation, no need to disassemble the PC and only by connecting the USB port to a PC, and can transfer data at 480 Mbps.