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Tandy 1000 Basic Reference Manual

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Chapter
10
I
BASIC Keywords
Example
10
PEN ON
20
ON PEN GOSUB
1000
30
REM
500
END
1000
REM PROCESSING ROUTINE
11 00
RETURN
'30
Line 10 turns on pen trapping. After each program statement
is
executed, BASIC checks to see if the pen has been activated. If it
has, BASIC immediately executes the subroutine at Line 1000.
235

Table of Contents

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Tandy 1000 Specifications

General IconGeneral
ProcessorIntel 8088
Processor Speed4.77 MHz
RAM128 KB (expandable to 640 KB)
Operating SystemMS-DOS 2.11
ManufacturerTandy Corporation
Release Year1984
StorageSingle or double 5.25" floppy disk drive (360 KB), optional hard drive
SoundTandy 3-voice sound
PortsParallel, Serial
GraphicsCGA (Color Graphics Adapter)
Graphics Modes320x200, 640x200

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