The hard drive is the primary computer storage medium, which is made of one or more aluminum or glass platters, coated with a ferromagnetic material. Most hard disks are "fixed disks," which have platters that reside permanently in the drive. Removable disks are encased in plug-in cartridges, allowing data to be taken out of the drive for storage or for transfer to another party. Before high-speed connections were common on the Internet, removable SyQuest, Jaz and Zip disks were routinely sent through the post office.
Two Major Categories: ATA/IDE and SCSI, HP-CompaqHard Drive AD018322C8 128417-B21 [zasłonięte]919-001 18.2GB, 10K, Wide-Ultra SCSI-3, SCA, LVD or SE, 80 Pin
Most hard disks are ATA (originally and still widely known as "IDE"). SCSI drives have traditionally been found on servers and high-performance workstations. The SCSI advantage is that up to 15 devices can be attached to the same controller board, which uses only one slot in the PC. SCSI was the first drive technology to employ fault-tolerant RAID systems. Today, ATA drives are widely used for RAID arrays. Hp-Compaq Hard drives can be used in many applications.
