how information is stored magnetically on hard drives.?
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.
No, actually the computer is pumping the brakes instead of keeping full pressure on them.
NO the anti-lock system is there to help prevent skids when one wheel looses traction, so slow down when the road is icey.
techniques is written to the disk by ability of transmitting an electromagnetic flux via an antenna or examine-write head this is fairly on the element of a magnetic fabric, which in turn alterations its polarization through flux. the techniques might nicely be examine by ability of a examine-write head which senses electric exchange through fact the magnetic fields pass by ability of in close proximity through fact the platter rotates.
No. It won't wear the pads quicker.
