"Jorge R. Frank" wrote in message
...
"Danny Dot" wrote in news:3b%eh.6266$qp1.3100
@tornado.texas.rr.com:


"Jorge R. Frank" wrote in message
...
"j_m_k__" wrote in news:1165764768.618660.208500
@l12g2000cwl.googlegroups.com:

Here in Sweden we have seen a lot of clips from Mission Control Center,
Mission Launch Center and from Flight Control. I wonder what kind of
computers are in use and what operating system they are using?

Mainly DEC Alpha workstations running Unix for the critical tasks, PCs
running Windows (on a separate network) for the non-critical tasks.

The DECs are quite obsolete (two mergers ago...) and NASA is looking at
replacing them with PCs running Linux.


What about the mainframe (I think called the MOC)? Is it still in
operation?

Nope, it's finally been decommissioned, replaced by a new Trajectory
Server.


Does it emulate the MOC (e.g. use GDR and run the MOC code), or did they
bite the bullet and rewrite a BUNCH of code?

Danny Dot

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