Hubble also has backup computers in the event of an emergency.

Relying on help from two backup computers, the astronauts were able to point the telescopes by hand.

They looked, if he was any judge of such things, to have their own set of backup computers.

What made these incidents frightening was that they occurred despite the presence of backup computers - perhaps even because there were backup computers.

Instead of containing the malfunction, each backup computer picked it up like a virus and passed it on to the others.

Santos was already reaching for the backup computers as she spoke.

And that was where CURE's backup computers had been placed by Smith.

Every system on the ship dipped, then firmed, as the duplicate backup computers came on-line.

Although the backup computers were lost, there were copies of drawings in the hands of engineers, clients or blueprint shops.

We will either use one of our backup computers, or move the center to a temporary location.