FilenameA name of up to eight characters that MS-DOS uses to identify a file.Floppy diskSee Diskette.Format

To prepare a new disk (or an old one you want to reuse) so that it can store information. Formatting divides a disk into tracks and sectors and creates addressable locations on it.

GraphicsLines, angles, curves, and other nonalphanumeric data.Hard disk

The enclosed unit used to store data permanently. Unlike a diskette, it is fixed in place. It can process data more rapidly and store many more files than a diskette.

Hardware

Any physical component of a computer system, such as a monitor, printer, keyboard, or CPU.

Hexadecimal

A base 16 numbering system frequently used by programmers. Any decimal number between 0 and 255 can be represented by a two-digit hexadecimal number.

High-density

A type of diskette format that allows you to store more data than normal. A 5 ¼-inch high-density diskette can store 1.2MB of data. A 3 ½-inch high-density, double-sided diskette can store 1.44MB of data.