My computer beeped and a message printed across the top of the screen.
Before she could say anything, however, the computer beeped.
A moment later, the computer beeped for her attention.
The computer beeped and an error message appeared on the screen.
Again the computer beeped and the error message popped up.
"You know it's a man's thing, but women are doing it," she said as her computer beeped in the background.
He activated the tape; the computer beeped and then went dark.
He was barely done with it when the computer beeped.
The computer beeped, and then answered in its feminine voice.
The computer beeped just at that moment to let him know it was done.