how is information stored on hard disk . i wanna know it from electronic level?
If you let me out of the basement I could fix them for you. I am tres handy - I can spackle.
No. I don't. I have had bad wiper blades often enough to appreciate them. :)
Why wouldnt you have windshield wipers?
When you retrieve the file, the diskk drive reads the magnetic state and relays that information to the computer, which uses a program to translates the 0's and 1's into whatever format the program is expecting. Although the rest is correct in spirit if not in detail, the above is not at all right.? The hard disk's onboard controller does all the translation and error-correction, then sends the assembled data to the IDE or SATA interface.
At the ,most basic level, the disk (platter) is a magnetic material that can be in one of two magnetic states. Think of the North or South of a bar magnet. One state is considered a 1 and the other a 0. The platter is mapped by sectors and tracks, thus allowing the computer to access specific areas on the drive to retrieve or write data. Since all computer data and instructions are a combination of 0's and 1's, when storing data on the disk platter, the hard drive receives the comand to write a sequence of 0's and 1's when you save a file. The interface in the hard drive case, uses a magnetic device to set the magnetic state of the platter to match the 0 and 1 combination and stores the location (also as a series of 0's and 1's) in the file table. When you retrieve the file, the diskk drive reads the magnetic state and relays that information to the computer, which uses a program to translates the 0's and 1's into whatever format the program is expecting
