Microsoft makes open source GW-BASIC

As Microsoft released the MS DOS source code,1 .25 & 2.0 there were several requests to release Microsoft BASIC so Microsoft released GW-BASIC in GitHub. Unlike the other released code this one is for historical and educational reference purposes, that’s why no changes are accepted.

What is GW-BASIC?

GW-BASIC was a BASIC interpreter derived from IBM’s Advanced BASIC/BASICA, which itself was a port of Microsoft BASIC.

Microsoft’s various BASIC implementations can trace their origins all the way back to Bill Gates & Paul Allen’s implementation of Microsoft’s first product – a BASIC interpreter for the Altair 8800.

During the late ’70s and 80s, Microsoft’s BASIC was ported to many OEM’s specific platform and hardware needs, and for several processors popular at that time, including the 8088, 6502, 6809, Z80, and others.

The code was made in assembly, so there is no code in C language