no, the head not touching the surface of the hard disk. If it touch the great chance of data may be lost. only the head of floppy disk is touch the surface of the disk.
In a hard disk the heads fly above the surface on a thin cushion of air, to prevent wear to the disk or heads. Should something cause the heads to touch the moving disk surface it is called a "head crash" and is not all that different from an airplane crash, as the heads quit flying on their cushion of air.
mariner 4
In magnetic particles on the hard drive disk surface. The drive head reads the magnetic particles and interprets if they are ones or zeros. The head doesn't touch the disk surface but resides about .00005 thousands away from the surface. Just opening the drive housing in an unclean environment can render the drive unusable. It also voids the warranty
touch the surface of the brain how does it feel
They don't. It would actually be a fairly large disaster if either of them ever did.
The dinosaur was the 1st animal to touch the earths surface.
No. The actual visual brightness of a surface is Chroma or Intensity. Texture is the way the surface feels to the mind (cause you can't actually touch it), whether it's smooth, or choppy, or looks bumpy..
If you mean "does a touch screen count as an output device", then the answer is "yes, in part". A touch screen is actually two components -- a touch-sensitive surface of some type over the top of a grid of pixels.The touch-sensitive surface is an input device, but the actual display components are an output device. Therefore, the touch sensitive display as a whole is both an input device and an output device.
Surface that touch food are called "food contact surfaces".
You should only touch the outside of a hard drive. The parts of the hard drive you should not touch are inside. The hard drive is sealed and if you break the seal, you void any warranties and risk any data you have inside.
The iPod touch doesn't have a hard drive, it has flash memory. You can get it in up to 64GB.
Touch is actually not considered to be a chemical sense. Touch is actually considered to be a physical type sense.