11. That replacement was being loaded with software to act as a command-and-control computer . 12. Hartsfield said Wednesday that the primary command-and-control computer has continued to work fine. 13. It is also fitted with a digital ballistic fire control computer . 14. The company said work is continuing on the problems with the flight-control computers . 15. In April, command-and-control computers broke down in quick succession, snarling space station operations. 16. The core control computer CPU was a redundant MIL-STD-1750A control system. 17. The launcher is fully controlled by a fire control computer ( FCC ). 18. In 1996, the European Space Agency's US $ 1 billion engine control computer . 19. One of the three critical command-and-control computers failed again this week. 20. Critical command-and-control computers broke down in April and continued malfunctioning, off and on.