The need of disc defragment?
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Why the need of it? Computer noob here.
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Its like you have this desk full of paper you keep collecting and piling up, and then you have trouble finding specific pieces fast. So you have to tidy the desk up and put everything in order to find things faster lor.
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I think we have to explain everything in laymen terms and use a story to let people understand how the hard disk operates and why the need to defrag.
To make things short and simple, the media in the hard disk where all data are written and stored and retrieved are divided into sectors and each sectors has some form of register or numbering for the write head to address, reach before accessing it to write or read data. When you have a new hard disk without any data or information in it, the write head will always access the media from inside out, from the smaller internal diameter of the media (FYI the media is round like a CD/ DVD-r) outwards to the largest outer diameter. When you delete any data written meanwhile, the space in between the data will be empty and accessible for new data writes. so when you save something onto your hard disks again right after the deletion the read/ write head will place data onto that sector with tagged access information. If that space is too small for your data file the remainder of the data shall be placed on a new sector further out of the media and away from the initial string. thus your data are fragmented but this allows the hard disks to maintain its write speed. later when the data are to be retreived or accessed, it may take the read head a little longer when it seeks the file in fragmented sectors as compared to continuous read out over datas that are placed consecutively in a chuck of sectors. Disk defragmentation is a periodic maintenance tool that moves such data and group them orderly so that read speed of hard disks can be maintained and keep the overall performance of your computer in check. Remember, the slowest device in your computer is always the hard disk drive because it is the only device that transfer data through mechanical means. the motherboard and other cards in your computer somehow moves data in the in smaller steps of electrical waves called signals. -
Well if you want to layman term it, at least add some paragraphing.
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haOriginally posted by ditzy:Well if you want to layman term it, at least add some paragraphing.