I-Data 5250 ALLY manual Ibm, Ifs, Igs, Irs, Ius

GLOSSARYPage G-5

I

IBM	The world’s largest manufacturer of
	computing equipment.
IBM 35 Hex transparency	A standard form of transparency used in
	SCS data streams.
IFS	Interchange file separator.
IGS	Interchange group separator.
Initialization	To preset to proper starting values.
Input	The introduction of data from an input
	device to the computer’s main memory.
Input device	A unit used to enter data.
Interchange separator	A command used to delimit information
	strings in SCS data streams (IFS, IGS,
	IRS, IUS).
Interface	The method by which different types of
	devices are linked to each other for
	communication (e.g., parallel, twinax).
Invalid character	In hexadecimal, any character other
	than numerals 0-9 and letters A-F.
IR	Intervention required.
IRS	Interchange record separator.
IUS	Interchange unit separator.

L

Least significant digit	The digit representing the least value
	(e.g., in 1024, the 4 is the least
	significant).
Left margin	The number of the first column at
	which a character can be printed on a
	page.
LF	Line feed.
Line density	Vertical spacing, or the number of lines
	per inch that can be printed on a page.
Line Feed	A control code that advances the print
	position down by one line.