Tandy 1000 Basic Reference Manual

Chapter 10 I BASIC Keywords
FRE
Function
F RE (dummy arg u mnt)
Returns the number of bytes in memory not being used by
BASIC.
Dummy argument can be any string or numeric constant or vari-
able. If you specify
a numeric argument, BASIC returns the
amount of memory available.
If you specify a string argument,
BASIC compresses the data before returning the amount
of
memory available. This frees unused memory that was once used
for strings.
BASIC automatically compresses data
if it runs out of work-
space.
This may take a few seconds.
Examples
PRINT FRE(44)
prints the amount of memory left.
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Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200