Part of hard drive

As we all know hard drives are data storage and documents, and where System OS and application programs installed. Actually Hardisk can be classed with Memory, memory that is permanent, because the stored data and documents will not be lost after the computer on or turn off the switch.

Hardisk Inside there are several critical components, by knowing the components of this Hardisk we can better maintain our hard drive so that we secure documents and data stored on it. Because if you have important data, so if your hard disk is damaged then the data you also were damaged. But when the Mother Board or other components are damaged while the disk is not damaged, you can replace the other components and assemble your disks and data in it remains safe.

Here are some important components of hard disk:














Platter

Shape of a plate or disc which serves as data storage. Globular, a compact disc, a magnetic pattern on the sides are made of metal permukaanya.Platter that contain millions of tiny magnets, called magnetic domains domain.Domain-regulated in one or two directions to represent binary " 1 "and" 0 "

The disc is divided into several tracks, and some sectors, where the tracks and this is the place sctor data storage and file system. For example our hard drives with a capacity of 40 GB, when the format was not until 40 Gb capacity. because there must be a trac and sectors used to store the ID identifier of formatting the hard drive.

The number plate of each disk is different, depending on the technology used and the capacity of each disk-drive harddisk.Untuk latest output, usually a plate has a capacity of 10 to 20 Gigabyte.Contohnya a 40 Gigabyte hard drive capacity, usually consisting from two plates, each with a capacity of 20 Gigabyte.

Spindle

Spindle is a place to put platter.Poros shaft has a drive which functions to rotate the plate with a spindle drive which is called here the role motor.Spimdle participate in determining the quality of putaranya hard drive because the sooner, the better the quality harddisknya.Satuan means for measuring the velocity is Rotation Per Minutes or commonly called RPM.Ukuran that we often hear for the speed of this rotation include 5400 RPM, 7200 RPM or 10 000 RPM.

Head

This tool is used to read data on the surface of the plate and the plate dalamnya.Setiap record information to disk has two head.Satu above the surface and one below the surface.

Head is in the form of electromagnetic devices that are placed on the surface of the plate and attached to a slider.Slider attached to a stalk attached to the actuator arms arms.Actuator die mounted on the actuator shaft by a board called the logic board.

Therefore, when the hard drive is working there should be no shock or vibration, because the disk head can swipe your hard drive so will result in Bad Sector, and also can cause damage to the hard disk drive head can no longer read the Track and Sector of the hard disk.

Logic Board

Logic Board is a board on the hard drive operation, where the logic board so that the hard drive there are Bios hard disk when connected to the Mother Board automatically recognize the hard drive, such as Maxtor, etc. Seagete. Bios hard disk other than the place where the Logic Board also switch or Power Supply and distribution of data from hard disk to the mother-Head Board for ki control by the processor.

Actual Axis

Is the shaft for a handle or as a robotic hand that can be read sctor Head of the hard drive.

Ribbon Cable

Ribbon cable is the liaison between the Head with the Logic Board, where any document or data in the read by the Head will be sent to the Logic Board to the next in order to send to the Mother Board Processor can process data in accordance with the input received.

Conector IDE

Is the liaison between the hard drive cables with matherboard to send or receive data.
Right now the average hard drive is already using the system so it does not need the SATA ribbon cable (IDE cable)

Jumper Settings

Each hardis have jumper settings, functions for determining the position of the hard drive.

When we installed on the computer hard drive two pieces, then by setting Jumper setting where we can determine where the hard disk Primary and Secondary hard disk which is usually called the Master and Slave.

Masters is the main hard drive where the system is installed, while the Slave is the hard drive into two usually required for storage of documents and data. Jumper When the setting is not set, then the hard drive will not work.

Power Conector

Is a source of direct current from power supply. Power supply to the hard drive there are two parts:

1. Voltage of 12 volts, such as mechanical work to move the disc and the Head.
2. Voltage of 5 volts, the power function to mesupply Logic Board in order to work to send and receive data.

Thus on the hard drive, hopefully the information that I write to be useful to you.

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Type of hard disk

Hard disk or can be called a hard drive, fixed disk, HDD, or enough hard disk only, is the medium used to store files and data in computer systems. Hard disk consists of three main parts, namely magnetic discs, mechanical parts, and head to read data. The disk used to store data, while on duty mechanical parts rotate the disc.

Kind of hard disk space varies, depending on the categories used. For example, based on the type of interface, the rate of data transfer speeds and data storage capacity.

Types of interfaces found on various hard disk, which is ATA (IDE, EIDE), Serial ATA (SATA), SCSI (Small Computer System Interface), SAS, IEEE 1394, USB, and Fibre Channel. Type of interface determines the level of data rate or speed of data transfer. For example, a SCSI hard disk transfer speed ± 5 MHz, that is able to enter into a data transfer up to 5 Mb per second.

Among the many types of interfaces, only three types of hard disks are often used, ie IDE, SATA, and SCSI. SCSI hard disks are usually used in servers, workstations, and Apple Macintosh computers starting in the mid 1990s until now. While hard disks are widely used in personal computers (PCs) is a type of SATA.

ATA
AT Attachment (ATA) interface standard for connecting storage devices like hard disks, CD-ROM drive, or DVD-ROM drive on your computer.

ATA stands for Advanced Technology Attachment. ATA Standard is managed by a committee named X3/INCITS T13. ATA also has several other names, such as IDE and ATAPI. Since the introduction of the latest version of the ATA called Serial ATA, ATA version was later renamed Parallel ATA (PATA) to distinguish the new version of Serial ATA.

Parallel ATA only allows a maximum cable length is only 18 inches (46 cm), although there are many products available on the market that has a length of up to 36 inches (91 cm). Because of the short distance, PATA is only suitable for use in the computer. PATA is very inexpensive and commonly found in computers.

This default name is the first PC / AT Attachment. Its main feature is that it can accommodate a direct connection to the ISA BUS 16-bit so called AT bus. This name was later shortened to AT Attachment to resolve copyright issues.

SATA

SATA is the development of the ATA. SATA is defined as a technology designed to replace the ATA in total. Of serial ATA adapter can accommodate data transfers at speeds higher than the simple ATA.

The first-generation SATA interface known as SATA/150 or often referred to as SATA 1. 1 communicate with the speed of SATA 1.5 GB / s. Uncoded his transfer speed is 1.2 GB / s. SATA/150 have almost the same speed PATA/133, but the latest version of the SATA has many advantages (such as native command queuing) which causes it to have more speed and ability to perform work in multitask environments.

In the early period of SATA/150, adapters and drive makers use a bridge chip to convert an existing design with PATA interface. Bridge device has a SATA connector and has some power connector. Gradually, the bridge to accommodate the native SATA products. SATA is the current speed of 3GB / s and now experts are designing technology for SATA 6Gb / s.

Some features of SATA are:

* SATA uses four signal line which allows the cable is more compact and inexpensive compared to PATA.
* SATA accommodate new features such as hot-swapping and native command queuing.
* Drive SATA controller can be plugged into Serial Attached SCSI (SAS) so that it can communicate with the same physical cable as native SAS disks, but SAS disks can not be plugged into the SATA controller.

Power cable and SATA cable has changed significantly compared to Parallel ATA cables. SATA data cable using seven conductors in which four of whom are active for the data line. Therefore, the shape is smaller, easier to use the SATA cable in the room that is narrower and more efficient for cooling.

SCSI

SCSI (Small Computer System Interface), pronounced "skasi" is a standard created for the purposes of data transfer between computers and other peripherals. SCSI standards define commands, protocols, and electrical and optical interfaces required. SCSI offers data transfer speeds are highest among other standards.

Use the most numerous in the SCSI hard disks and tape drives. However, SCSI is also included with scanners, printers, and optical devices (DVD, CD, and others). Standard SCSI devices are classed as standard SCSI-independent so that theoretically could be applied in all types of hardware.

Based on the rate of rotation speed, type of IDE hard disk has a rotation speed of 5400 rpm and 7200 rpm. While the SCSI hard disk capable of rotating between 10,000 sd 12 000 rpm.

The level of your hard disk rotation speed is measured in units of RPM (rotation per minute / revolutions per minute). The faster the spin the hard disk, then the amount of data that can be read by the head more and more. And vice versa.

Some brands of hard disk is used, among others, Western Digital (WDC), Quantum, Seagate, Maxtor, Samsung, IBM, Toshiba, and Hitachi.

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