Epson Progression U12 - Manual (Page 198)

Hardware
Any physical component of a computer system, such as a
monitor, printer, keyboard, main system board, disk drive, or
CPU.
Hexadecimal
A base-16 numbering system frequently used by programmers
to represent the binary numbers used by the computer. Any
decimal number between 0 and 255 can be expressed by a
two-digit hexadecimal number consisting of the numbers 0
through 9 and the letters A through F. Hexadecimal numbers
are usually followed by the letter H (or h) to differentiate them
from decimal numbers.
High-density
A type of diskette format that allows you to store more data
than on single- or double-density diskettes. A 5.25-inch
high-density diskette can store 1.2MB of data. A 3.5-inch
high-density diskette can store 1.44MB of data.
Integrated Drive Electronics. A type of hard disk drive interface
in which the controller is located on the drive, instead of on a
controller card. Your computer includes an interface for up to
two IDE hard disk drives on the main system board.
Input/output (I/O) port
see Port.
Interface
A physical or software connection used to transmit data
between equipment or programs so they can work with each
other.
Glossary 11