Tandy 1000 Basic Reference Manual

Chapter 1
ABOUT BASIC FOR MS-DOS
BASIC for MS”’-DOS is an interpreter. This means that, when
you run a program, BASIC looks at one statement at a time and
executes
it before going to the next statement.
BASIC also lets you take advantage of many MS-DOS features,
such as:
0 Multilevel directories
Faster running programs
0 Expanded graphics capabilities
Disk Files
BASIC uses the MS-DOS multilevel directory structure on disk.
A formatted disk has a main directory called the “root” direc-
tory which is represented by the backslash (\). The root direc-
tory can contain both files and “second-level’’ directories.
This illustration demonstrates how a typical system for a sales
and service company might be set up. The root directory con-
tains
two second-level directories: SALES and SERVICE. The
root directory also contains a file called letters.
11

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