hard disk

A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order. HDDs are a type of non-volatile storage, retaining stored data when powered off. Modern HDDs are typically in the form of a small rectangular box.
Introduced by IBM in 1956, HDDs were the dominant secondary storage device for general-purpose computers beginning in the early 1960s. HDDs maintained this position into the modern era of servers and personal computers, though personal computing devices produced in large volume, like cell phones and tablets, rely on flash memory storage devices. More than 224 companies have produced HDDs historically, though after extensive industry consolidation most units are manufactured by Seagate, Toshiba, and Western Digital. HDDs dominate the volume of storage produced (exabytes per year) for servers. Though production is growing slowly (by exabytes shipped), sales revenues and unit shipments are declining because solid-state drives (SSDs) have higher data-transfer rates, higher areal storage density, somewhat better reliability, and much lower latency and access times.The revenues for SSDs, most of which use NAND flash memory, slightly exceeded those for HDDs in 2018. Flash storage products had more than twice the revenue of hard disk drives as of 2017. Though SSDs have four to nine times higher cost per bit, they are replacing HDDs in applications where speed, power consumption, small size, high capacity and durability are important. As of 2019, the cost per bit of SSDs is falling, and the price ρrémíùm over HDDs has narrowed.The primary characteristics of an HDD are its capacity and performance. Capacity is specified in unit prefixes corresponding to powers of 1000: a 1-terabyte (TB) drive has a capacity of 1,000 gigabytes (GB; where 1 gigabyte = 1 billion (109) bytes). Typically, some of an HDD's capacity is unavailable to the user because it is used by the file system and the computer operating system, and possibly inbuilt redundancy for error correction and recovery. There can be confusion regarding storage capacity, since capacities are stated in decimal gigabytes (powers of 1000) by HDD manufacturers, whereas the most commonly used operating systems report capacities in powers of 1024, which results in a smaller number than advertised. Performance is specified as the time required to move the heads to a track or cylinder (average access time), the time it takes for the desired sector to move under the head (average latency, which is a function of the physical rotational speed in revolutions per minute), and finally the speed at which the data is transmitted (data rate).
The two most common form factors for modern HDDs are 3.5-inch, for desktop computers, and 2.5-inch, primarily for laptops. HDDs are connected to systems by standard interface cables such as PATA (Parallel ATA), SATA (Serial ATA), USB or SAS (Serial Attached SCSI) cables.

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  1. J

    PC App How to fix na Hard disk na tumutunog ng tik tik

    How to fix na Hard disk na tumutunog ng tik tik tapos pag natagalan sa paglalaro madalas na nag lalag na kailangan ko na ba i format to o bumili ng bago o may iba pang paraan salamat sa makakatulong
  2. J

    Hard disk retrieval

    Hello meron po ba technician dito for retrival po ung hard disk na reformat na po sya. Pwede pa po kayo un ma retrieve
  3. K

    Help sa magrepair magbuhay ng Hard Disk

    Mga paps, mayroon ba kayong kilala o meron ba ditong nagrerepair ng hard disk o nagrerecover ng files niya, nabasa kasi laptop ko tapos bigla di gumana hard disk. nag rorotate naman motor niya pero ayaw niya ma detect sa drive tapos maingay siya. Thank you in advance mga paps.
  4. S

    Help Hard disk question

    Good day mga master, tanong ko lang sana ano yung mga signs na malapit na mag fail yung hard disk sa pc natin.
  5. C

    Calling IT Specialist

    Anyone na nakapag fix/troubleshoot na ang problem ay hard drive na bad sector or physical issue
  6. 9

    Help Mag tanong lang po sa hard disk

    helow po sa lahat mag tanong lang po ako nag install kasi ako ng Hard Disk Sentinel den nakita ko na Estimated remaining Lifetime 39 days nalang totoo po ba ito na hindi na magagamit pag natapos na sa loob ng 39 days :cry: salamat po sa sasagot sa tinatanong ko po
  7. J

    Help External Hard Disk - No media (Chipsbank)

    Good day mga lods. Baka may naka-experience na po sa inyo ng ganito. Inabot na kasi ng 27 hours yung time repair ng HD ko. Nakare-repair po kaya sya or nagka-count lang yung time nya? Kasi UNKNOWN FLASH sya. Patulong naman mga idol kung meron kayong alternative fix para sa HD.. Maraming...
  8. V

    Help Changing hard disk and installing different window os

    sa mga expert diyan sa computer mga lods ask ko lang since mag chachange ako from hdd to ssd ask ko lang kung pwedeng mag install ng different version ng windows like from windows 10 mag iinstall ako to windows 7 and pwede pa bang gamitin yung same product key
  9. J

    Closed External hard drive uli

    yung isa ko pong external nakakacopy naman sa PC ko pero kapag nagcocopy ako mula sa external papunta sa PC hindi completong nacocopy.. example yung size ng kinopy ko mula sa external is 1gb, yung lalabas lang sa computer is 66mb, parating ganun kahit ano icopy ko... pero yungnakalagay sa...
  10. H

    Closed Help me about this error

    Sa mga experts natin dyan, ano kaya problema neto? Bago paman sana tong laptop ng kaibigan ko.. Eto yung screenshot Pahelp po sana :( salamat
  11. K

    Closed Pahelp namn po about my external hard drive :(

    Patulong namn po. di ko kasi maopen yung external ko po :( amraming important file po yun :(
  12. A

    Closed Hdd to sdd os

    Hi, maitanong ko lang. Pwede ko ba i clone yung laman ng HDD ko pati yung OS niya sa bago kong SSD? Kung pwede, paano? example yung HDD ko nasa loob ng laptop ko then nasa external hard drive or docking station yung SSD ko. Any methods para pag lipat ko ng SSD sa laptop ko ayy same parin ang...
  13. A

    Help Flash drive vs external hdd

    Hello mga ka PHC! Gusto ko lang matanong if ano ang matagal masira ang flash drive or ang external hard drive? Alam ko na mas maliit ang storage capacity ni flash drive pero ang gusto ko lang malaman kung ano ang matagal masira. Thanks!
  14. Z

    Closed Mac hdd

    Mga sir may hdd ako ng mac tapos binilhan ko ng enclosure pero ayaw lumabas sa windows 10 nareread nya yung hdd pero hindi lumalabas yung storage help naman po
  15. S

    Closed How to increase the fake size your hard disk space up to 2 tb in window 10 (fake hdd)

    1. Search Disk Management in Window Search Box and select Create and format hard disk partitions. 2. Now you see Disk Management dialog box in your screen. Select Action in the menu bar and click on Create VHD in your Computer. 3. Now a new dialog box appears in your screen. First click on...
  16. E

    Closed Help external hard disk won't read

    Help! Di kasi nababasa ng computer yung hard disk ko di naman siya nabagsak. Nadedetect yung usb pero hindi naman na read yung nga laman ng hard drive ko. Di ko rin siya makita sa disk management. Pero once gunana siya. Naaccess ko yung mga files ko nung nag lipat ako ng usb port and ginalaw...
  17. L

    Closed Any way to repair a hard disk?

    Is there any way to restore health to a hard disk? I used hd sentinel to check the health of my laptop hard disk pero 30% nalang siya.
  18. P

    Closed Hard disk error

    May way paba para maayos yung hard disk ng pc namin? Naka write protection siya tapos ayaw na mag boot ng pc dahil sa hard disk. Sana may makatulong. Salamat!
  19. T

    Closed Ahci p0: ?? help po.. need ko kasi para sa project

    NASA ATTACHED PO YUNG PROBLEM Hindi Nag Display yung 500gb sa hard disk at Yung name ng brand BTW laptop hard disk po yan. Kung sino man may alam nito pwede pa turo step by
  20. A

    Closed Good hard disk

    mga PAPs, tanung ku lang kung ano magandang, mabilis at matibay HDD Product may 2 akong HDD dito SEAGATE MOMENTUS THIS 500GB AT WD 5000LPVX 500GB(THIN) plano kung bumuli nang enclosure peru hirap ako kung ano sa dalawa yung pipiliin ko... Sana me maka Helps... Salamat in Advance
  21. L

    Closed About hdd pc

    Tanong ko lang po sir/maam. Kapag po ba may naka install na na OS sa hard disk na nabili mo(second hand) ready to use na po ba agad un kahit di ka na mag format? pls help
  22. C

    Closed Hard disk

    anu kaya gagawin ko dto..
  23. L

    Closed Hard disk data recovery

    Great Day mga kaPH... asking for your very kind help... nabagsak ko kasi yung hard disk (not external but yung hdd ng pc) ng inalis ko... at di naman malakas pagkakabagsak sa paa ko pa nga tumama... pero mukang naalog siya... at yun to make the story short di na siya gumagana.. is there any way...
  24. K

    Closed internal hard disk to external hard disk

    hello mga paps..tanong ko lang kung sino naka convert ng internal hard disk ng pc to external hard disk?may dalawa kasi akong internal hard disk eh gusto ko sana mapakinabangan so na isip ko gawing external hard disk..possible ba?ano po mga kaka ilanganin ko para dito?salamat sa lahat...hehe
  25. E

    Closed RAM at HDD?

    Hi mga masters, Patulong nman po, pashare nman sa akin ng konti sa mga nalalaman niyo :D paki differentiate nman po ng RAM at HDD. Ano po ba ang pinagkainba nila sa isa't isa? Salamat po. Need lang for reporting hahahahah! HAPPY MORNING!
  26. L

    Closed Asking for Price HDD 500GB to 1TB

    Magkano brandnew na ganito?
  27. D

    Closed External Hard Disc Drive Won't Read

    Na I-connect ko na yung Hard disc sa android ko through otg cable at tapos Umilaw naman yung hard drive pero walang lumalabas sa android ko.Ano kaya ang problema?Please help me:notworthy::notworthy::notworthy:
  28. Z

    Help back the original size of hardisk/hard drive

    :( maam/sir pede po patulong....kasi po ung hardisk/hardrive nang laptop ko po ang original size nito ay 160GB pero ngayon po naging 149 nalang po nawawala po ung 11GB pano po ba ito ayusin...at no po ba ang nagiging dahilan nang ganitong problema...Thanks in ADvance po sa makakatulong...:D
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