Xerox 6287 user manual Fcc, Gddm, Gml

GLOSSARY	Page 13-5
Extended ASCII	Some printer manufacturers have
	implemented their own version of 8 bit
	transmission. Extended ASCII allows
	128 additional characters to be
	displayed by the printer.
F
FCC	Federal Communications Commission.
FF	Form feed.
Firmware	The pre-programmed EPROMs
	installed in the ALLY PLUS (the
	internal software).
Flow control	Serial communication handshaking.
Form feed	A control code that instructs the printer
	to process the current page and print it;
	a page end. The physical transport of
	paper to the beginning of a new page.
G
GDDM	Graphical Data Display Manager. An
	IBM graphics software product.
GML	Graphic Machine Language.
Graphic Windows	A feature of Xerox printers.
H
Handshaking	An exchange of signals between two
	devices in a computer network, as a
	prelude to data exchange. The method
	of flow control used in serial
	interfacing.
Hardware	Any physical device in a computer
	network.
Hewlett-Packard	A California company that produces a
	wide range of computer equipment and
	peripherals.
Hexadecimal	A base 16 numbering system. Numbers
	are represented using digits 0-9 and
	letters A-F.