Ekhard disk drive (HDD), jiske khaalihard disk, nai tohard drive ke naam se jaana jaae hae,computer ke khaatir ekstorage device hae. Hard disk keIBM sab se pahile 1956 me kaam me laais rahaa.
Ek hard drive me ketnaajaankari rakkhaa jaae sake hae, kegigabyte (GB), nai toterabyte (TB) me naapa jaae hae. Pahilemegabyte (MB) aurbyte (B) ke bhi kaam me laawa jaawat rahaa. Ii char chij ke biich ke sambandh ke niche keequation me dekhaawa gais hae:
1 MB = 1000B
1GB = 1000MB
1TB = 1000GB
Hard disk me jaankari kemagnetism se rakkhaa jjae hae, ek nai to jaada platter ke kaam me laae ke. Ii platter ke saathe ek magnetic head rahe hae jon ki platter me likhe, nai to parrhe hae.[1] Jaankari ke "random access" ke method se parrha jaae hae; jiske matlab hae ke jaankaari ke platter me se koi jagha se parrha jaae sake hae.
HDD ke jorre khaatir SATA cable
Hard disk ke computer se jorre ke khaatir Serial ATA, Parallel ATA. Fibre Channel, SCSI cable ke kaam me laawa jaae hae.
