Editor's take: Microsoft continues to tightly control the release of some of its most important pieces of legacy software. While enthusiasts and programmers are eager to see newer versions of MS-DOS ...

PC-DOS 1.00 would lead to Microsoft becoming computing's top dog Microsoft continues to embrace open source. The source code and annotations provide insight into the operating system's earliest days.

Halcyon DOS Days: Back in the command prompt days, DR-DOS was one of the main competitors to MS-DOS in the operating system market. Those days are long gone, but a mysterious developer is reviving the ...

The Cipher class, central to the javax.crypto package, abstracts encryption/decryption through a provider-based architecture that delegates to pluggable CipherSpi implementations for ...

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 mid-1990s, Microsoft DOS dominated most PCs. Those who were a step ahead might’ve been using Windows 3.1, but even that was a superimposed user interface on top of MS-DOS. Windows was still ...

The FreeDOS Project has released version 1.4 of its fully open source DOS-compatible OS – but you'll need a BIOS for bare metal. This release follows a little over three years after FreeDOS 1.3, which ...

Former Deputy Editor for Security, Linux, DIY, Programming, and Tech Explained. Christian has extensive experience as a writer and editor and has been published in Computer Weekly, Linux Format, Tech ...

David is a freelance writer based in the Pacific Northwest, but originally hailing from the Bay Area. A journalist by training who has been writing professionally since 2009, he discovered the power ...

The source codes for certain products of major Vietnamese cybersecurity firm Bkav are being offered on sale on a data leak forum for a total of $250,000. The leaks were recently posted on Raidforums, ...

A forensic computing researcher may have settled one of tech's longest standing controversies: whether the original version of Microsoft's seminal MS-DOS operating system contained code copied from an ...