AT&T 6300 Programmer's Manual page 700

Glossary
type of
variable
type of
expression
typewriter
keyboard
user
function
variable
variable-
length
record
vector
18
Indicates whether the variable is a string or a
numeric variable and
(if
numeric) if it is an
integer, a single-precision, or a double-precision
variable. The type of variable may be set by a
DEF (INT, SNG, DBL, or STR) statement, or
by a character definition tag at the end of the
variable name.
The type of expression is the data-type
(string, integer, singie-precision, or double-
precision) of the resulting evaluation of the
expression. It depends on the type of its
operands.
The central section of the keyboard that is used
as a standard typewriter keyboard.
A function that the user must define before it
is called (see DEF FN statement).
A named data item whose values may change
during program execution.
A record whose length is independent of the
length of other records in the file.
A one-dimensional array.