Hard Disk

Hard Disk Drive (HDD) or usually called Hard Drive, is a non volatile storage media that can store digital data quickly and has a surface magnetic.

Five type of hard disk :
1. Hard Disk IDE
2. Hard Disk SATA
3. Hard Disk SSD

4. Hard Disk SCSI
5. Hard Disk SAS

1. Hard Disk IDE

Usually devices like floppy drive, hard drive and CD-Rom connected to the computer via the device interface Integrated Drive Electronic (IDE). The IDE concept was initially proposed by Western Digital and Compaq in 1986. IDE is basically not a technical name for the standard interface. The original name is AT Attachment (ATA), which means that Interface Originally developed for the computer at

IBM

2. Hard Disk SATA

SATA (Serial Advance Technology Attachment) is the primary bus on the computer that is designed to transfer data between the motherboard and the data storage media such as hard disk and optical drive in the computer.

Usually transfer data in SATA Hard Disk is faster than IDE and it has the capability to provide point to point channel communication between mother board or the main board and the drive

3. Hard Disk SSD

A solid state drive is a storage device that uses solid state memory to store data.

While technically this hard disk is not a disk, its a solid state drive that referred to a solid state disk drive, or a solid state disk, in reference to the fact that, in some ways, it replaces the traditional hard drive drive like SATA. Usually Solid State drive has a

thin body and faster than the latest hard drive (SATA) and usually it is use in thin laptop like Macbook Air.

The principle behind solid state drives is that there should be no moving parts: no spinning platters, no moving heads. Data is split into word length pieces and stored in memory

4. Hard Disk SCSI

Hard Disk SCSI (Small Computer System Interface) is the ANSI standard for connecting devices to the computer.

SCSI technology is generally parallel, but many types of SCSI is circulating in the market such as FireWire and fiber cable. SCSI is an alternative IDE hard disk. one

controller can control two IDE drives. While one SCSI controller can control 8 or 16 drive SCSI cable because it is bigger and longer than the IDE cable.

5. Hard Disk SAS

Hard Disk SAS (Serial Attached SCSI) is data transfer technology that designed to move data from storage media such as on computer hard drives and tape drives.

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