Some sort of “system program” that features a hex editor, disassembler, port monitor, etc. akin to KnightOS’ features.

https://www.ticalc.org/archives/files/fileinfo/196/19619.html

the pieces of KnightOS are maintained as separate projects under the KnightOS organization

Compatible with the TI-73. The most recent versions may support USB upload from PC, allowing this to effectively completely replace the original calculator OS.

https://web.archive.org/web/20231225091219/https://knightos.org/

https://github.com/KnightOS/KnightOS (git most recent & USB, but compile difficult)

https://www.ticalc.org/archives/files/fileinfo/463/46387.html (precompiled, NO USB!!)

The only ASM shell for the TI-73 w/ dedicated programs, unless you want to count Swan or KnightOS. Has two versions, 0.2 and 0.3, with 0.3 apparently being just a test.

https://www.ticalc.org/archives/files/fileinfo/366/36618.html (0.2, for TI-OS 1.6)

https://www.ticalc.org/archives/files/fileinfo/388/38805.html (0.3, for all TI-OSes?)

A flash shell that can run Mallard programs. Little information about appearances.

https://www.ticalc.org/archives/files/fileinfo/455/45516.html

What even is this? The TI-81 has no way to communicate with a PC.

https://www.ticalc.org/archives/files/fileinfo/48/4859.html

Various text only shells that are required for many games on this thing. A few are dead, so look in…

https://www.ticalc.org/archives/files/fileinfo/226/22691.html (Ace)

https://www.ticalc.org/archives/files/fileinfo/14/1411.html (Ash)

https://www.ticalc.org/archives/files/fileinfo/286/28681.html (CrASH new for 82s)

https://www.ticalc.org/archives/files/fileinfo/87/8774.html (CrASH update)

https://www.ticalc.org/archives/files/fileinfo/87/8772.html (CrASH)

https://www.ticalc.org/archives/files/fileinfo/16/1628.html (JASS)

https://www.ticalc.org/archives/files/fileinfo/1/113.html (OS-82)

Whatever this is, it has no information.

https://www.ticalc.org/archives/files/fileinfo/50/5010.html

Allows organization of files, apparently.

https://www.ticalc.org/archives/files/fileinfo/182/18213.html

Imitates the interface of DOS.

https://www.ticalc.org/archives/files/fileinfo/352/35207.html

Imitates Windows, with a start menu, cursor, and programs slots.

https://www.ticalc.org/archives/files/fileinfo/92/9293.html

Like Windows TI, except no fancy GUI, it seems.

https://www.ticalc.org/archives/files/fileinfo/1/187.html

Appears to be imitating a Powershell prompt of some sort.

https://www.ticalc.org/archives/files/fileinfo/1/191.html

A more fancy imitation, because it has a mock Windows logo. The usual “Start” menu and nothing else…

https://www.ticalc.org/archives/files/fileinfo/76/7648.html

Yet again, imitating Windows with a Start menu and nothing else. This time, it has built in programs.

https://www.ticalc.org/archives/files/fileinfo/148/14868.html

Imitations with a start menu.

https://www.ticalc.org/archives/files/fileinfo/50/5012.html

Revolutionary, because it has icons on the desktop, plus little buttons where the clock would usually be.

https://www.ticalc.org/archives/files/fileinfo/110/11025.html

Requires CrASH. Enables I2C and Networking; to what extent is unknown.

https://www.ticalc.org/archives/files/fileinfo/109/10999.html

A colorful launching shell with various interfacing supports, such as file renaming.

https://www.ticalc.org/archives/files/fileinfo/465/46574.html

Whether these emulators support operating systems for these consoles is unknown; it must be looked into further. Consoles without meaningful OSes are not included.

https://emulation.gametechwiki.com/index.php/Emulators_on_TI_Calculators

Nintendo Entertainment System – NES84

Nintendo Game Boy (no Color) – Ti-Boy CE 0.1.3

Whether these emulators support operating systems for these computers is unknown; it must be looked into further. PCs without meaningful OSes are not included.

https://emulation.gametechwiki.com/index.php/Emulators_on_TI_Calculators

CHIP-8/SuperCHIP – Chip84CE, Chip-84

It’s for “retards”, apparently.

https://www.ticalc.org/archives/files/fileinfo/474/47470.html

generate natural-looking worlds, place up to 24 different kinds of blocks, keep up to 5 saves, and enjoy real-time shadow effects, transparent water, and a 10 FPS framerate!

An isometric Minecraft port created by The Science Elf. Pretty feature filled considering the power of these calculators!

https://www.youtube.com/watch?v=Bj9CiMO66xk

https://github.com/TheScienceElf/Blocks-TI-84

Whether this can interface with POP/IMPP email servers is unknown, but it seems to imply it can.

https://www.ticalc.org/archives/files/fileinfo/471/47156.html

Whether these emulators support operating systems for these consoles is unknown; it must be looked into further. Consoles without meaningful OSes are not included.

Nintendo Game Boy (no Color) – Ti-Boy CSE

https://www.omnimaga.org/ti-boy-se-game-boy-emulator-for-ti-83se84/official-ti-boy-cse-alpha-thread/

The CSE enhanced version of the classic Doors shell. Probably the fanciest looking of all the versions. Supports various interesting options.

https://www.ticalc.org/archives/files/fileinfo/456/45670.html

the pieces of KnightOS are maintained as separate projects under the KnightOS organization

Similarly compatible with the CSE. The most recent versions may support USB upload from PC, allowing this to effectively completely replace the original calculator OS.

https://web.archive.org/web/20231225091219/https://knightos.org/

https://github.com/KnightOS/KnightOS (git most recent & USB, but compile difficult)

https://www.ticalc.org/archives/files/fileinfo/463/46387.html (precompiled, NO USB!!)

Many TI-85 programs will work on the TI-86. This probably doesn’t go the other way around.

A slightly cruddy Windows 95 clone, that is graphical with text.

https://www.ticalc.org/archives/files/fileinfo/113/11350.html

Very primitive text-based ripoff of MS-DOS.

https://www.ticalc.org/archives/files/fileinfo/111/11150.html

Yet another simple text based shell, with meager menus.

https://www.ticalc.org/archives/files/fileinfo/6/606.html

https://www.ticalc.org/archives/files/fileinfo/82/8275.html (MISh clone)

https://www.ticalc.org/archives/files/fileinfo/6/658.html (Oshell-85 clone)

https://www.ticalc.org/archives/files/fileinfo/79/7902.html (Peak Relocation clone)

https://www.ticalc.org/archives/files/fileinfo/1/144.html (PhatOS clone)

A shell that professes to bridge the gap between the TI-85 and the TI-86 in shell function.

https://www.ticalc.org/archives/files/fileinfo/120/12046.html

More silly basic dialogue boxes and menus.

https://www.ticalc.org/archives/files/fileinfo/7/717.html

Appears to be the most presiding of the “CShell-NT” style shells; it’s presumably the origin of this “basic vertical menu” look.

https://www.ticalc.org/archives/files/fileinfo/20/2079.html

More interesting looking than the rest, with a background + Windows-style aped interface. Seems to be the 2^nd most “respected” of the shells, going off the program counts.

https://www.ticalc.org/archives/files/fileinfo/19/1919.html

This one’s cruddy level is unknown, but it is text based by self admission.

https://www.ticalc.org/archives/files/fileinfo/426/42652.html

https://www.ticalc.org/archives/files/fileinfo/429/42988.html (newer?)

A very cruddy and “non-graphical” Windows 95 clone.

https://www.ticalc.org/archives/files/fileinfo/45/4569.html

Highly basic, but many programs depend on this, it seems.

https://www.ticalc.org/archives/files/fileinfo/19/1968.html

Talks about baud rates and modems, so it does appear to have the ability to interface. However, the extent of it’s function is unknown.

https://www.ticalc.org/archives/files/fileinfo/24/2463.html

This has been seen on other calculators, and it’s not much different.

https://www.ticalc.org/archives/files/fileinfo/8/843.html

A more interesting Linux clone that seems to have more commands.

https://www.ticalc.org/archives/files/fileinfo/15/1508.html

An absolutely awesome clone of Mac OS Copland, which never released. Looks stunningly like the actual OS, as if it’s being emulated, instead of simulated. Excellent work.

https://www.ticalc.org/archives/files/fileinfo/30/3085.html

Not sure if this is related to Doors CS.

https://www.ticalc.org/archives/files/fileinfo/59/5913.html

Some shell that seems to require compilation.

https://www.ticalc.org/archives/files/fileinfo/43/4310.html (Compile on DOS)

https://www.ticalc.org/archives/files/fileinfo/43/4309.html (Compile on Unix)

A slightly less stunning clone of Mac OS. Still isn’t too bad though.

https://www.ticalc.org/archives/files/fileinfo/34/3483.html

Looks like ZShell, but it’s in BASIC.

https://www.ticalc.org/archives/files/fileinfo/24/2451.html

Just a Linux clone, which does the job OK.

https://www.ticalc.org/archives/files/fileinfo/58/5898.html

Just a DOS clone.

https://www.ticalc.org/archives/files/fileinfo/13/1390.html

What is a TI without a Windows clone? Same background as the Macintosh Interface…

https://www.ticalc.org/archives/files/fileinfo/28/2807.html

The better of the two Windows clones made in BASIC. Big menu, features, etc.

https://www.ticalc.org/archives/files/fileinfo/8/864.html

Whether these emulators support operating systems for these consoles is unknown; it must be looked into further. Consoles without meaningful OSes are not included.

Nintendo Game Boy (no Color) – gb68k 0.5.6

https://www.ticalc.org/archives/files/fileinfo/369/36950.html https://github.com/wyatt8740/gb68k

Reminiscent of Windows, with nice dithering on the folder icons.

https://www.ticalc.org/archives/files/fileinfo/404/40488.html

Consice and detailed “icon” desktop interface shell. Lots of languages and applications.

https://www.ticalc.org/archives/files/fileinfo/284/28443.html

Reminds me of Mac OS. Automatically detects the calculator it runs on.

https://www.ticalc.org/archives/files/fileinfo/391/39171.html

Very fancy and nice looking shell with various functions and icons. Reminds me of the Amiga for some reason.

https://www.ticalc.org/archives/files/fileinfo/339/33917.html

Patched version of an advanced file manager supporting plugins, nested folders, etc.

https://www.ticalc.org/archives/files/fileinfo/405/40508.html

Also possibly the prestige version. A very awesome looking GNU GPL adhering Unix-style OS. Feature filled, capable, and flexible. Has USB support.

https://www.ticalc.org/archives/files/fileinfo/319/31951.html

A reasonable kernel with various functions, such as “Crash protection”. Has a developer version.

https://www.ticalc.org/archives/files/fileinfo/350/35090.html

https://www.ticalc.org/archives/files/fileinfo/379/37939.html (developer)

So far the kernel is being written, and user-space utilities and applications will follow.

May be better than the 92+ version, as this calculator is more advanced than that one. This OS is highly comprehensive, detailed, authentic, and sufficient for serving as a Unix-like. Almost complete, but there are known build issues. Remarkable work for this calculator, moreso than the 89, and possibly moreso than the 92+, as this calculator is newer.

http://punix-os.blogspot.com/

https://github.com/abbrev/punix

French-only shell with greyscale dithering, compression, loading files, etc.

https://www.ticalc.org/archives/files/fileinfo/266/26600.html

A quite concise clone of a Unix command line. Looks relatively interesting.

https://www.ticalc.org/archives/files/fileinfo/474/47474.html