>> Hard drive
> The hard drive is the centre of the computer's memory, the brain of the machine.
> The constant buzz of data is mingled with a persistent hum, like that of a CD player: the hard disk is spinning in the same way as a CD, while a magnetic needle records and reads the information.
> A tiny magnetic field is created between the needle and the disk, as the needle causes particles in the hard disk's metal to point 'up' ('north') or 'down' ('south').
> Explore the hard disk
> Look at the binary data
> Go back to Local Disk (C:/)