The computers hummed, as the smart bullets picked their targets.

Only the computer hummed smoothly and the candles were blinking on the screen.

The computer had hummed to activity as soon as she entered the building.

Maps adorn the wall and a new computer hums in the corner.

The powerful computer hummed along to her complex instructions.

The computer hummed as it processed the new data.

He went back out to where the computers were humming like giant mechanical bees.

The computer on the desk hummed quietly to itself.

The computer blinked and hummed, then gave him an answer.

With a flick of a switch the computer hummed to life as he half listened to the television.