A computer is like a mechanical human brain which carries out various specific operations.

Furthermore, sir, I have never approved of that mechanical brain.

And this mechanical brain rarely makes a wrong decision.

Here I again focused my thoughts upon the mechanical brain just above my head.

"Your mechanical brain is functioning better than ours," he replied.

"And you think the mechanical brain has reasoned that out?"

A mechanical brain of the Regent's quality would have taken other measures long before this.

We didn't know how capable they might be of repairing a damaged mechanical brain.

For the first time it began to seem not so much a mechanical brain as the living creature he knew it to be.

The mechanical brain had determined the planetary destination with 95.639% certainty.