Microsoft just open-sourced 6502 BASIC (BASIC M6502 8K VER 1.1) from 1978. The code powered the Commodore PET, VIC-20, and C64, and underlies Applesoft BASIC on Apple II. Download it on GitHub to run, ...

Microsoft has open-sourced the version of BASIC it created in 1976 for the MOS 6502 processor used in many early microcomputers.… As the software colossus explained in a Wednesday post, Microsoft ...

There are a great many pieces of software of yesteryear that are no longer readily accessible. It’s now possible to cross Microsoft BASIC for the Dragon 64 off that list, with the source code now ...

Microsoft released the source code for ' Microsoft BASIC for 6502 Microprocessor - Version 1.1 ' as open source on September 3, 2025. While the 6502 BASIC source code had previously been distributed ...

In the late 1970s and early 1980s, if you had a personal computer there was a fair chance it either booted into some version of Microsoft Basic or you could load and run Basic. There were other ...

Did you know that, between 1976 and 1978, Microsoft developed its own version of the BASIC programming language? It was initially called Altair BASIC before becoming Microsoft BASIC, and it was ...

Having re-open-sourced MS-DOS on GitHub in 2018, Microsoft has now released the source code for GW-BASIC, Microsoft's 1983 BASIC interpreter. GW-BASIC can trace its roots back to Bill Gates' and Paul ...

Late last week, Microsoft released the complete source code for Microsoft BASIC for 6502 Version 1.1, the 1978 interpreter that powered early personal computers like the Commodore PET, VIC-20, ...

Microsoft has released the source code for the BASIC version it developed in 1976 for the MOS 6502 processor, a central component of many early home computers, The Register reports. As far back as ...

On Wednesday, Microsoft released the complete source code for Microsoft BASIC for 6502 Version 1.1, the 1978 interpreter that powered the Commodore PET, VIC-20, Commodore 64, and Apple II through ...