Simviation Forums

....because I hate Microsoft at all!


What do you think? What kind of onboardsystem runs on those boardcomputer of Airbus or Boeing? I don't mean the FMC, I more likely mean the extra things which for example the A340 has...

I think you'll find that the code used for running any aircraft systems will not be reliant on MS products .... but likely to be a specialist operating system.

Anything from aircraft to washing machines will use an embedded system that is custom made for its needs. A bit like the BIOS in a PC, without it you'd be unable to do anything.
Mind you it'd be funny if you could setup a plane to fly only in FSX, then you could blame flight delays on poor FPS or somthing I'd be a tad worried about the blue screen of "literal" death at 30,000 ft however

I think you'll find that the code used for running any aircraft systems will not be reliant on MS products .... but likely to be a specialist operating system.

I thought that about cash machines (ATMs) - until one rebooted on me!

I buy a computer mag each week (Micro Mart) and they have a feature called "Windows crashing" where Joe Public sends in pictures of numerous MS error messages. So far I've seen ATMs, Airport information screens, Train booking halls, Hospitals and local councils, to name a few.
Microsoft is omnipresent it seems...  :o

Lol, windows has crashed even on Bill gates during some of his demonstrations things......

Anything from aircraft to washing machines will use an embedded system that is custom made for its needs. A bit like the BIOS in a PC, without it you'd be unable to do anything.
Mind you it'd be funny if you could setup a plane to fly only in FSX, then you could blame flight delays on poor FPS or somthing I'd be a tad worried about the blue screen of "literal" death at 30,000 ft however

Something similar happened to a Malaysian 777 sometime in the near past...I do agree with the poor FPS part  ;D

It's happened to a few DO-328s on approach too: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20020906X01547&key=1

I don't know of any certified avionics systems that run on windows. Occasionally you have people doing a flight display running on a laptop, and those can be windows based but they are usually only personal projects. Just about all avionics out there are running on embedded systems. Many of the systems in years past have been quite bulky, heavy, and slow (by today's standards). Now, more and more off the shelf parts are becoming practical for use in avionics, though there is still a lot of customization necessary. Particularly, more standard processors are being used. Power PC has been a popular choice for some time, though other processors originally targeted for laptops are being used as well.

As for OS, many systems don't use any OS at all. If you don't need the advanced functionality of an OS (thread/process handling, filesystem, graphics, etc.) that there is not point in supporting all the overhead. Also, for certified avionics the testing requirements are extremely stringent and having an OS in the picture complicates that process even further. So if you don't need it, it's best not to have it. There are some applications where an operating system is preferable though. In most cases the choice will be linux. With linux, you have to ability to control precisely what the operating system includes and how it operates. This allows you to compact both the size of the operating system and to strip all functionality you don't need out of the kernal. It is not unfeasible to get an entire OS and file system down to under 16 MB.

That is not to say the windows is not or cannot be used in avionics and be completely stable. One of the main reasons instability creeps into programs is because there is such a diversity of hardware available for PCs that it is impossible to test for every case out there. Avionics do not have this issue as the hardware is known.

Anyway, there's sort of a scatter shot answer to your question. If you want to read more about avionics, the information is always available online:
http://en.wikipedia.org/wiki/Avionics

XP or vista... none of these

Airbus uses a load of Intel 286 (AMD built of course) based machines for flying the plane.
Some IFE runs on modified Windows NT/NT5 (AKA Win2K)