MS BASIC for Macintosh was a dialect of

Microsoft BASIC Microsoft BASIC is the foundation software product of the Microsoft company and evolved into a line of BASIC interpreters and compiler(s) adapted for many different microcomputers. It first appeared in 1975 as Altair BASIC, which was the first ...

for

Macintosh The Mac (known as Macintosh until 1999) is a family of personal computers designed and marketed by Apple Inc. Macs are known for their ease of use and minimalist designs, and are popular among students, creative professionals, and software en ...

. It was one of the first Microsoft BASIC variants to have optional line numbering, predating

QuickBASIC Microsoft QuickBASIC (also QB) is an Integrated Development Environment (or IDE) and compiler for the BASIC programming language that was developed by Microsoft. QuickBASIC runs mainly on DOS, though there was also a short-lived version for the ...

. It was provided in two versions, one with standard binary floating point and another with

decimal arithmetic The decimal numeral system (also called the base-ten positional numeral system and denary or decanary) is the standard system for denoting integer and non-integer numbers. It is the extension to non-integer numbers of the Hindu–Arabic numera ...

References

BASIC programming language Discontinued BASICs Classic Mac OS programming tools Microsoft programming languages 1983 software {{computer-stub