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SymbOS: Graphical Z80 Multitasking Operating System

www.symbos.de Software & code Software projects Software engineering Candidate
Screenshot of www.symbos.de captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 4 calendar years, with breakout response in 3 of them.

submissions
4
submitters
3
observed span
2012–2023
peak thread · 98 comments
204 pts
latest 20+ return · 2023-12-22
182 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

Symbos is pretty cool but it's a crying shame that it's closed source. A lot of people in the z80 community don't understand the value of open source, but will give away binaries for free.

I never came across any MSX machines when I was a kid and collecting weird computers. Did they ever make it across the pond to the US market? eBay has a few at the moment, but all are Japanese imports, I think. Likewise, the Amstrad seemed to have an interesting history, but I never found one and guess they never sold in the US. Not that I need more computers...I live in a travel trailer, and already have a C64…

Here's a video capture of SymbOS in action running on an MSX turbo R (http://www.faq.msxnet.org/msxtr.html). The Turbo R itself looks really cool, I kind of want one now.

sedachv·3-point thread·

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
3

100+ points or 50+ comments

Total points
495

reference only — not used in Hall rules or ranking

Total comments
204

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2012-10-15SymbOS: preemptive multitasking OS that can play mp3s, video on 8-bit Z80 PCssedachv31
2015-12-17SymbOS: preemptive multitasking OS that can play mp3s, video on 8-bit Z80 PCsFirst breakoutsedachv10636
2018-01-05SymbOS: Graphical Z80 Multitasking Operating SystemBest threadPaul_S20498
2023-12-22SymbOS Z80 multitasking operating systemLatest 20+ point returnjbverschoor18269