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Texas Instruments' TI-99 Gets UNIX99 OS, Bringing UNIX Functionality to Vintage Computers

Experience UNIX on your vintage TI-99. UNIX99 brings familiar tools to this classic hardware, with continuous improvements promised.

In this image we can see a poster with shells and text.
In this image we can see a poster with shells and text.

Texas Instruments' TI-99 Gets UNIX99 OS, Bringing UNIX Functionality to Vintage Computers

Texas Instruments' vintage TI-99 computers are now running a UNIX-like operating system, UNIX99. Developed by AtariAge forum member mrvan, this system offers tools familiar to UNIX users despite the TI-99's hardware limitations.

UNIX99 supports most TI-99 hardware and offers file management, a basic user account system, and a command shell for scripting. It's not the first UNIX-like operating system for the TI-99, but it's the latest evolution from mrvan's initial set of standard C libraries. The developer is continuously working on improvements for the platform, which had a 16-bit CPU and various peripherals despite its limited memory and lack of multitasking.

UNIX99 doesn't have official UNIX certification, but it provides tools that UNIX users will find familiar. It joins a lineage of homebrew UNIX-like operating systems that have influenced each other, like those on the Z80 platform.

UNIX99 brings UNIX-like functionality to the TI-99 computers, offering users a new experience on vintage hardware. Despite the platform's limitations, mrvan's ongoing work promises further enhancements to this unique operating system.

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