Epson 10020 - Manual (Page 224)

Floppy disk
See 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.
Graphics
Lines, 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.
Interface
A physical or software connection used to transmit data
between equipment or programs.