Why can the floppy let us read and write the data in it and why can the CD only let us read the information?
I need help for my niece's homework! :)
2007-11-06 22:04:11 · 7 answers · asked by s_a_b_t 2 in Computers & Internet ➔ Hardware ➔ Other - Hardware
Because a standard cd has the tracks closed, which means you cannot add any more data.
A cd-rw gives you the option of closing the tracks or keeping them open for further writing or rewriting.
A floppy is re-write able
2007-11-06 22:08:19 · answer #1 · answered by Point 3 · 0⤊ 0⤋
Floppy disk is a magnetic disk enclosed inside it. It contains magnetic particles. So that helps for the read / write operation just similar to audio cassette .
But in CD have different methodology for writing the content inside that. So data can be written only once.....
thats the basic idea.. :)
2007-11-07 06:15:53 · answer #2 · answered by Max_cool 1 · 0⤊ 0⤋
You can get rewritable CDs so you can write to them.
However a floppy id encoded with a magnetic pattern that the head in the drive can change, or change parts of ( eg 1 file)
A CD has a pattern burned into it by a laser so it is harder or in most cases impossible to change.
2007-11-07 06:11:09 · answer #3 · answered by Vermin 5 · 0⤊ 0⤋
Because the two works completely different, floppy is magnetic, CD is optical, and lighting equipment that some how can sketch down information is very pricey until few years ago.
2007-11-07 06:12:58 · answer #4 · answered by Andy T 7 · 0⤊ 0⤋
See in floppy is cheaper than CD but in CD you can have lot space but due to some technical reason it has made in two way.
2007-11-07 06:08:08 · answer #5 · answered by vijaya s 3 · 0⤊ 0⤋
You might be using a cd-r Not cd-rw Plus you need to have a writable cd rewrite in your system
2007-11-07 06:08:20 · answer #6 · answered by Anonymous · 0⤊ 0⤋
floppy is designed that way and there is an alternative for the cd.. there is a cdrw. and its rewritable!
2007-11-07 06:19:39 · answer #7 · answered by angelie m 1 · 0⤊ 0⤋