Tandy 1000 Basic Reference Manual

Chapter ~. 10 I BASIC Keywords
Sample Programs
10 CLS
20 LINE -(RND*319,RND*199),RND+4
30 GO TO 20
In Screen Modes 1 to 6, Lines 10-30 create a loop that draws
random lines on the video display.
40 FOR X=O TO 319
60 NEXT
50 LINE (X,B)-(X,199),X FlND 1
In Screen Modes 1 to 6, Lines 40-60 draw an alternating pat-
tern, turning on and
off the line.
10 CLS
20 LINE -(RND*639,RND*199),RND*2,BF
30 GO TO 20
This program draws a random filled box in Screen Modes 1 to 6.
201

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