what is the use of hard disk in computer?
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A hard disk or a hard drive disk (HDD) holds your software and other information inside your computer. The bigger or more space the hard drive disk has, the more information will fit on it.
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We need a little more information, does your computer see the hard drive?
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"Computer storage, computer memory, and often casually memory refer to computer components, devices and recording media that retain data for some interval of time. Computer storage provides one of the core functions of the modern computer, that of information retention."\n\nIt can come in many different forms - Hard Drives, CD-Roms, DVD-Roms, Flash Memory, and more.
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hard drive is where your data is stored\nprocessor is what processes your jobs\nram is memory to store jobs for the processor to process\npower supply supplies power to your computer\nvideo card sends video to your monitor
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hdd/ cd drive /floppy etc which is physical are physical storage media \n\nyou can reaad a article here\nhttp://www.cs.sfu.ca/CC/354/han/material/notes/354notes-chapter7/node3.html\nfor more info\nthanks\nregards\nislaminamdar@yahoo.com\njoin my randomizer www.allyours.info\ninamdarinfotech.com\nps. dont 4get to vote for best answer
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Flash memory is meant to be small and compact, such as flash drives and flash mp3 players. They're nice to have, but they dont have very good capacity (memorywise). Hard drive items are usually a bit more bulky, but have a lot more digital space. Hard drive memory simply means that data is saved onto a hard drive, and spins to access the data. I have no fricking clue what flash memory uses to work.
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partitioning hard drive was used on early days of computer because older operating system had a limit on addressing/accessing hard disk in terms of size. e.g windows nt 4.0 can only installed on 4gb hard drive, what will you do then if you had 40gb hard drive? the answer is partition your harddrive.
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The hard drive Mfg. (i.e. Seagate, Maxtor, Hitachi, etc.) has drive utilities available for (free) download. I have worked on many computers and most of the time the Mfgrs. software was able to safely move the data from the bad sector into a good portion of the drive. \n\nThis is why a hard drive may say 160GB. and show on the computers operating system as 149GB. This space is set aside  specifically for this purpose.\n\njust go to the Mfgrs. website look in "support" for their diagnostic utility.
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use your computer's resource
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It all depends on how much software you have on the computer, filling up the harddrive so much will slow any computer down
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It depends.  If you move a lot of files around, install and uninstall things a lot and if your hard drive is small (40 Gbs or less) you will need to defrag more often.  Large drives don't really need it too often.  The purpose is to put the "fragments" of your files and programs back into a continuous "string" thereby loading a bit quicker.  It is not a magic bullet to gain any perceived speed.  The PC just runs more efficiently.  Windows XP will give you a recommendation when you run the defrag program.  I guess it never hurts, but remember, hard drives have a lifespan, and no need to make the drive work harder than it has to.
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Partition - This is how you organise your harddisk space. Say you have a 100GB harddisk. You can use all of it as C: drive or you can "partition" 50GB for C: drive and 50GB for D: drive. Some people put different Operating Systems in different partitions, while others put Programs in one partition and Data in another partition. There are innovative ways to partition your harddisk to get the optimal performance for your particular needs.\n\nFAT - File Allocation Table. This is the place where the locations of your files are registered so that it can be saved, retrieved, deleted, moved, etc.\n\nFormat - This is a process of organising your harddisk drive's space so that the operating system and applications can use it.\n\nIDE - This is harddisk hardware interface to the PC system's board. It is normally connected via a ribbon cable.
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The data on your hard drive is stored in a quite complicated structure. The largest block of this structure is a partition. It is an area of the physical disk, separated from the remaining disk space. There can be more partitions (separated areas) on one disk. The partitions are independent from each other and they appear as individual disks under Windows. Each partition can be formated to another file system(NTFS,FAT32...) and can be used completely separately (You can have more operating systems on more partitions.).\nMostly the disk is separated into two partitions, one for the OS and one for the data, but you can create as many partitions as you want to use them separately for storing different types of data.\nThe advantage of more partitions is that if you want to format one of them, you still maintain the data on the other one. Or you can put more operating systems on your PC by creating a partition for each OS.\nManaging partitions is quite easy. There are many programs to do this (one of them is even a part of the Windows installation).
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- A thumb drive has no moving parts and stores data in microscopic transistors.\n\n- A hard disk uses a spinning magnetic wheel and stores data as magnetic pits on a medium, sort of like a vinyl record.\n\nHard disks can usually hold more data, but thumb drives are catching up quickly, now reaching over 32GB in size for the largest ones.
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Formatting a hard disk is the process by which all data (information) is lost from the drive. You will loose all of the data unless you back it up. The link below will provide step-by-step instructions to formatting a conventional 386-type system. The article is quite old, but will work for all disks. If you are just trying to format for an install for XP then you just boot off the cd and format using the setup instructions.
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The Hard disk is layers of magnetic disks that has open spaces for storing file, however the files are stored permanently, unless you delete it, the hard disk also causes fragmented files that can slower down the computer, to defragment, use the disk defragmenter on your computer, and also I have a trivia for you: the read ang write head of a hard disk is 100 mm. away from the magnetic tape so don't move or bump your computer when it is on, so be careful.\n\nThe CD-ROM drive (or Compact disk-Read only Memory drive) is used to read CD-ROM, CD-R, CD-RW and other more but there is a difference, it only reads the data inside the CD, so for your safety, you cannot delete the files accidentally you know, CD-ROM drive have different speeds, highest today is 52x, but the slowest is 32x, so watch your CD's modification of how high it can take so it doesn't crack. it has also an eject and close button equipped so you cannot damage the opening sequence, also, this drives also have volume adjusters to adjust volume, and lastly, most drives today has a emergency eject button, its purpose is you can eject the disk even though the computer is off, just push a paperclib in the hole near the eject and close switch until the covers springs out and pull, and most of all, it has a headphone socket so you can listen to your audio even without speakers.\n\nMODEM is the acronym for Modulator-demodulator, it connects and disconnect line connections,it can be internal or external, external are better than internal but make sure \nyou have enough desks space and sockets!, the internal is installed to your computer in a PCI slot, it has its own power supply and makes enough space for other equipment, but you have take out the cover of the PC to take the modem to the computer shop. also you need an ISP (Internet Service Provider or Internet Package Solution) and net browser(Microsoft Like Internet Explorer, Macintosh Fire fox and Others) before you connect to the internet.\n\nSo happy day!
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Go to My computer, right click on it and choose "manage" option. A console will open. Now choose "Disk Management" under "Storage" head. A complete graphical representatino of your hard disks (including partition informations and file system)will appear in front of you. As simple as that. Good Luck!