Startup disk for an operating system will just boot the system and load OS basic components in the machine RAM. After that what all it does depends on what else it is programmed to do and what commands/options you select. If you plan to install an operating system it generally will ask you and give a warning that disk or particular partition of the disk will be formatted and you will loose all the data.
To erase a USB memory stick, using a MAC, use the application Disk Utility. With the USB stick inserted into the USB drive, highlight that stick from the list of drives. Then select erase. It will erase all of the files on the drive and reformat it. You can also use a program called Houdini 2, which will allow you to see hidden files, move, and erase them.
No, but if you have a CD-RW drive and the disk is a CD-RW then you can erase the files by writing over them with any CD burning software.
You need to start Windows using a boot disk that loads basic files. Your PC should check the CD drive for necessary files before checking the hard drive. Use an original XP installation disk.
It's use to erase and clean all files on the disk removing viruses and unnecessary files. Use also to install new Operating system to the disk if disk in particular is use on a computer system.
From a standard "can I access the file using normal file manipulation methods" yes, the files and directories on a disk are lost when you reformat your drive. That being said, with recovery software, it is possible to reclaim some of the data on the reformatted drive, though it is not certain. An interesting aside; simply reformatting your hard drive does NOT erase it. The data, for the most part, is still present on the physical media, and can be reclaimed. Therefore, if you have personal and confidential information on the drive, it is best to perform an industry-standard "wipe" of the disk.
You can use the DOS utility which is called format. In order to be able to erase a hard drive you have to boot your computer in DOS or Linux and then to use format utility. Format does not erase files. You can still find files with recovery program. If you want to avoid this over write hard disk with a program like ErAce
The disk drive doesn't. The operating system determines that there are no files on the disk.
diskcopy a: b:
Erase the information from the hard disk. Once may not be enough, because simple deletion of files does not erase the information. Re-formatting the disk is another possibility. You can also get commercial software that will totally wipe files and data from a system.
The disk drive.
Operating system is obviously resides in computer memory which is hard disk. But the main (booting) files are loaded into ROM by bootstrap loader at the time of start of the computer. Have you ever seen your C drive (or the drive which is for system, program files). This drive is on hard disk ... so OPERATING SYSTEM PLACED MAINLY ON HARD DISK...
A floppy disk DRIVE can read, erase and save information on a floppy disk. The disk can't do it by himself.