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Cuba fikir elok elok

..anda rasa anda dah cukup bersyukur?..

Thursday, June 23, 2011

HDD : Hard Disk Drive



A hard disk drive is a form of magnetic storage that is used as a persistent storage method. They consist of rigid or “hard” disks made of aluminum or glass with a magnetic coating. These disks are mounted on a spindle and spun by a motor. The disks are read by drive heads on an actuator arm that can move to read any part of the disk surface while it is rotating. The drive has a disk controller, which is a circuit board that controls the motor and actuator arm, controls reading and writing of data, and handles interfacing with the computer system. The hard drive interface is IDE or SATA with IDE speeds of ATA66 to ATA133 and SATA generation 1 (1.5Gbps [gigabits per second]) and 2 (3Gbps). Hard drives usually have the largest, cheapest storage capacity.

*copypaste je semua ni*

PLATTERS
- both sides of each platter are used for storage of data.

SPINDLE
- used to spin the platters.

HEAD ACTUATOR
- a mechanical device for moving or controlling the actuator arm to move the heads around the platters.

SLIDER & HEAD
- the mechanism used to read and write to the platters.

CASE & MOUNTING HOLES
- where the cover is attached to the case and also where the HDD is securely attached to the HDD bay in the computer case.
- The casing is normally sealed to prevent contaminants from entering inside the HDD

ACTUATOR ARM
- a mechanical arm enabling the HDD read/write heads to extend over & in-between the platters for reading and writing to the HDD.

JUMPER
- changes the drive either to be master or slave.

***
ok, cukup nota untuk arini. *giggle* pelik sebab aku post pasal hardisk? *gelak* nie adalah task sampingan Tn Wan Zul bagi. lepas dia tunjuk kat ktorg secara live apa isi kandungan hardisk, seperti gambar di bawah, dia suruh ktorg cari pula nama nama component dalam tu. dia kata, kena la tahu sikit apa ada dalam tu, memandangkan kerja ktorg arini adalah berkaitan HDD. [editted]

dah boleh jadi cermin lak platter nie, hehe

bos buka hardisk nie and bagi ktorg tengok sebab dia nak tunjuk kenapa dia tak bagi ktorg kasar sangat sampai hentak hardisk tu. nampak yang macam jarum tu, kalau terhentak, jarum tu boleh beralih sampai terkeluar dari platter. bila tu jadi, hardisk dikira rosak aka cannot be detected/ read. and actually banyak lagi sebab dia rosak, itu just one of it la..

*arini aku bengang sikit dengan classmate aku. sebab dia ambil remeh bila aku ajak teman pergi shah alam, nak jumpa budak budak bomba tu. then balik tadi, dia dapat call dari adik dia, kata mak dia pengsan, jantung terhenti. dah sampai bilik, faiz call kata mak dia dah tak ada. oh my, tiba tiba rasa sebak. rasanya dia dah lama tak balik rumah jumpa mak dia, dan arini dia langsung tak sempat nak jumpa untuk kali terakhir. kita sama sama doakan mak dia k, and dia juga, moga moga dia tabah. 

notabersepah:
.. rasa sangat tak sedap hati.. tadi masa balik, lgsg xpandang muka kawan tu sebab bengang sgt.. rasa bersalah pula.. :(


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