an electronic dis is also called SSD flash ROM (non volatile
also called solid state driver
Hard disk is recorded, main comes and goes.
Disk controllers
A hard drive comes with the Computer. A hard drive is considered permanent as opposed to magnetic tape. The data in tape can be accessed only serially whereas randomly in hard drive.
electronic - microprocessor, RAM, ROM, etc.electrical - power supplymechanical - hard disk head arm mechanism, fan blades
I might be wrong here, but it seems to me that an electronic volume is just a hard disk drive, or a subdivision of one set up in its own partition.
computer case
A file can be corrupted on a floppy disk any number of ways. Some of the more common ones are whenever you put the floppy disk near a magnet or some other source of ionized metal, if you try and pull the floppy disk out of the tray before the computer is done reading or writing it, or even if you somehow expose the inner part of the floppy disk to any type of electronic device (because of the electromagnetic waves that the electronic device gives off). As to how to retrieve the corrupted file, I don't know of any way to retrieve it.
A: interface
Typically hard disk drives can be purchased at any electronics store, or online. You can even view most electronic store prices and products online as well, as most stores have an online web page.
An external disk can be bought at any electronic stores, such as: Best Buy,Future Shop, Staples. Canadian Tire also carry this item for sale. Make sure one also check out Amazon and eBay.
Paul Nipknow made the 1st TV out of a scanning disk and a spinning disk and a series of holes. it didnt work but in 1928 Phio Fansworth made the 1st working one out of Electronic scanning, pickup and display devices
External hard disk can be bought from electronic stores like Best Buy, Future Shop or even Target. One can also order external hard disk from online sites such as Amazon or eBay.