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Welcome to NBASIC.

NBASIC is a classic BASIC interpreter that provides an environment similar in operation to microcomputers of the early 1980's.​
NBASIC
NBASIC Version 2.9.1 is here!
Released July 1, 2022

What

NBASIC is a BASIC interpreter designed to mimic the operation of 8/16bit microcomputers of the early 1980’s like the Tandy Color Computer®, Apple ][e®, Commodore 64®, Texas Instruments TI-99/4A®, and others.  The operating system that also included the BASIC interpreter was usually stored in ROM and started immediately upon boot up.

How

NBASIC works much the same way and is essentially a small operating system that handles memory management, input/output, file management, and command processing.  The interface to the operating system is through the BASIC interpreter.  To control NBASIC you enter commands in the form of BASIC statements.  NBASIC interprets the command and performs the requested operation.​

Why

NBASIC was developed for the computer hobbyist in mind nostalgic for these older microcomputers.  It is not meant to be a professional development tool.  Many BASIC computer programs from other platforms have been ported to NBASIC successfully.​

Features

Over 300 Statements
​Over 500 Functions
​User-defined Functions
Text and Graphics
Printing
​Sequential and Random Files
Numeric and String Arrays
15 Digit Numeric Precision
​​Strings up to 65,535 Characters
​Double, Float and Integer Data Types
​Sorting
​Formatting​
Debugging
​File Wildcards
Command Shortcuts
​Built-in Help and References
Example Programs
Frequent Updates
Welcome
DiskFile
Circles
NED
Random file example program
Options dialog
Spirals
NETRIS
Colors
Tic-Tac-Toe
Printing example program
Built-in help
Tandy Color Computer, Apple ][e, Commodore 64, and Texas Instruments TI-99/4A are registered trademarks of their respective companies.
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