Tandy 1000 Basic Reference Manual

Chapter 10 I BASIC Keywords
Notes:
0 BASIC ignores any points that are outside the viewport's
0 RUN, SCREEN, and WINDOW statements, without parame-
CLS clears only the active viewport.
Sample Program
limits.
ters, define the entire screen as
the viewport.
10 SCREEN 1
20 VIEW (1 0,10)-(200,100),2
30 PSET (100,50)
40 DRFlW "L40 E20 F20"
Line 20 sets the viewport. Line 30 sets the starting point for the
DRAW statement in Line
40.
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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