Tandy 1000 Basic Reference Manual

Chapter 10 I BASIC Ke.ywords
Erase
is an integer in the range 0 to 2 that tells BASIC how
much video memory to erase.
Erase can be one of the following:
Do not erase video memory, even if the screen mode
changes.
Erase the union
of the new page and old page if mode
or burst change.
Erase all video memory if
mode or burst changes.
0
1
2
If you omit
erase, BASIC assumes 1.
If you omit any parameters (except display page), BASIC uses
the previous values.
For more information on the graphics statements and video
pages, see CLEAR and Chapter
8, “Displaying Color and
Graphics.”
Examples
10 SCREEN 0,0
selects text mode with color off.
60 SCREEN 2
changes to high resolution, 2-color, graphics mode.
304

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