Which operating system is used in spacecraft?

Which operating system/systems is currently being used in spacecrafts? Was
FlightLinux implemented as the standard? Any information you can provide
would be greatly appreciated. Thanks.

"Tweak" wrote in message
...
Which operating system/systems is currently being used in spacecrafts?
Was
FlightLinux implemented as the standard? Any information you can provide
would be greatly appreciated. Thanks.

There is as far as I know no "standard".

The Shuttle uses HAL/S and I don't think you can really descibe it as having
an OS.

Many spacecraft have software written directly to the hardware with no
intervening OS.

"Tweak" wrote:

Which operating system/systems is currently being used in spacecrafts? Was
FlightLinux implemented as the standard? Any information you can provide
would be greatly appreciated. Thanks.

Most flight computers, like most computers that are not 'general
purpose', have something that Linux folks, let alone Windows folks,
would not recognize as an OS.

D.
--
The STS-107 Columbia Loss FAQ can be found
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Text-Only Version:
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Corrections, comments, and additions should be
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discussion.

"Tweak" wrote in message ...
Which operating system/systems is currently being used in spacecrafts? Was
FlightLinux implemented as the standard? Any information you can provide
would be greatly appreciated. Thanks.

The unmanned missions Mars Pathfinder, Deep Space 1, and Deep Impact use vxWorks.
(The first two have already finished. Deep Impact should launch in 14-15 months.)

http://www.windriver.com/products/vxworks5/index.html

--Bob Werner

On Thu, 16 Oct 2003 10:52:10 -0700, "Tweak" wrote:

Which operating system/systems is currently being used in spacecrafts? Was
FlightLinux implemented as the standard? Any information you can provide
would be greatly appreciated. Thanks.

The shuttle carries a number of laptop computers that run on Windows variants
(I'm not sure if the latest version is Win98 or Win2k). The ISS uses Solaris, I
think.

--
Michael R. Grabois # http://chili.cjb.net # http://wizardimps.blogspot.com
"I'm not dumb. I just have a command of thoroughly useless information."
- Calvin and Hobbes

"Michael R. Grabois ... change $ to \"s\""
wrote:

On Thu, 16 Oct 2003 10:52:10 -0700, "Tweak" wrote:

Which operating system/systems is currently being used in spacecrafts? Was
FlightLinux implemented as the standard? Any information you can provide
would be greatly appreciated. Thanks.

The shuttle carries a number of laptop computers that run on Windows variants
(I'm not sure if the latest version is Win98 or Win2k). The ISS uses Solaris, I
think.

Nit: Those laptops are used *on* spacecraft, not *in* spacecraft, as
they are not used for control, but for administrative tasks.

D.
--
The STS-107 Columbia Loss FAQ can be found
at the following URLs:

Text-Only Version:
http://www.io.com/~o_m/columbia_loss_faq.html

Enhanced HTML Version:
http://www.io.com/~o_m/columbia_loss_faq_x.html

Corrections, comments, and additions should be
e-mailed to , as well as posted to
sci.space.history and sci.space.shuttle for
discussion.

"Greg D. Moore \(Strider\)" wrote in
:


"Tweak" wrote in message
...
Which operating system/systems is currently being used in
spacecrafts?
Was
FlightLinux implemented as the standard? Any information you can
provide would be greatly appreciated. Thanks.

There is as far as I know no "standard".

The Shuttle uses HAL/S and I don't think you can really descibe it as
having an OS.

The four PASS computers have a primitive OS called GCOS (don't remember
what it stands for), mostly written in AP-101S assembly language. I don't
think the BFS has an OS per se.


--
JRF

Reply-to address spam-proofed - to reply by E-mail,
check "Organization" (I am not assimilated) and
think one step ahead of IBM.

This might post double, having news server problems...

(Derek Lyons) wrote in
:

"Michael R. Grabois ... change $ to \"s\""
wrote:

On Thu, 16 Oct 2003 10:52:10 -0700, "Tweak"
wrote:

Which operating system/systems is currently being used in
spacecrafts? Was FlightLinux implemented as the standard? Any
information you can provide would be greatly appreciated. Thanks.

The shuttle carries a number of laptop computers that run on Windows
variants (I'm not sure if the latest version is Win98 or Win2k).

Win98SE.

The
ISS uses Solaris, I think.

Nit: Some ISS laptops (PCS) use Solaris, others (SSC) run Windows. At least
one of the SSC laptops runs Win2K - it's used as a file server.

Nit: Those laptops are used *on* spacecraft, not *in* spacecraft, as
they are not used for control, but for administrative tasks.

Nit to the nit: the ISS PCS laptops *are* used to control the station (not
the SSC laptops, which are, as you say, used for administrative tasks).

Death of a thousand nits!

--
JRF

Reply-to address spam-proofed - to reply by E-mail,
check "Organization" (I am not assimilated) and
think one step ahead of IBM.

Soyuz software is used by the Argon-16 flight computer, first designed
in 1973, and first flown in 1980 on Soyuz T-1. I believe the software
is now in version 18, build B, but I could be wrong.

"Jorge R. Frank" wrote in
:


The four PASS computers have a primitive OS called GCOS (don't
remember what it stands for), mostly written in AP-101S assembly
language. I don't think the BFS has an OS per se.


FCOS - Flight Computer Operating System