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Guess Paper (Computer Science, 9th Class, 2010, Science Group)

A floppy disk, also called simply a diskette or disk, is a small flexible Mylar disk coated with iron oxide on which data are stored. The floppy disk has been around since early 1970s, today it is available in three 3½ inch, 5¼ inch and 8 inch sizes. The 5¼ and 8 inch diskettes are covered by stiff protective jacket with different holes. The central big hole called hub ring which is used to hold by disk drive during rotation. The elongated read write window is used to read and write data through read/write head. The small hole next to the hub ring is called index hole which is used to locating data through computer. The cut out on the side of the floppy disk is called write protect notch. If we cover this opening with a piece of paper then we can’t write data on to disk. In small diskette a hard plastic cover and protective metal is used to protect disk. Before using a disk we have to format a disk in which disk is divided into tracks and sectors for storing the data. Diskettes may be double sided and single sided while the storage capacity become less or more. Floppy diskettes are more convenient to use with microcomputers. A floppy disk which is a random access device can access data fast than magnetic tape

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    RIDA FATIMA on 03-03-2011 at 10:27:48 commented
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    ijazuddin on 25-03-2011 at 12:04:53 commented
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    Maryam shahid on 21-11-2011 at 09:53:40 commented
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    shani butt on 30-11-2011 at 12:25:18 commented
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    ahmed on 24-12-2011 at 07:12:53 commented
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    Ijaz on 19-01-2012 at 01:27:07 commented
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    Saud on 19-02-2012 at 02:05:39 commented
  • hellow assalam-o-alaikum bohat atcha ha
    umarahsan on 22-02-2012 at 04:48:37 commented
  • nice 1 topic
    adeen tayyab on 04-03-2012 at 05:14:30 commented
  • Assalam o alikum v.Gooooooooooooood boht achay
    Nouman on 17-03-2012 at 01:07:33 commented
  • assalam o alaikum
    uzair on 18-03-2012 at 06:04:15 commented
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    ,Download,,, on 20-03-2012 at 08:39:32 commented
  • plz help for class 9th 10th. Bhae itna b nhi hoga kia ab jb ke sb kch he ho rha hy is mulk me..plz help us..
    jawadkhan on 30-03-2012 at 05:48:50 commented
  • where s paper
    ali on 21-04-2012 at 01:08:58 commented
  • help all
    tayyab raees on 17-06-2012 at 10:12:20 commented
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    s.rabail.khan on 31-08-2012 at 02:34:36 commented
  • excellent
    Awais on 01-12-2012 at 05:33:10 commented
  • No
    kamran on 05-12-2012 at 05:37:37 commented
  • this is good computer notes
    fayaz ahmed bhatti on 23-02-2013 at 09:44:21 commented
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    Muhammad uzair on 31-10-2013 at 02:55:07 commented
  • plz help for class 9th 10th. Bhae itna b nhi hoga kia ab jb ke sb kch he ho rha hy is mulk me..plz help us..
    amir mubeen on 12-11-2013 at 06:08:06 commented

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