A keyboard, attached to this setup, let the performer control when the oscillator produced a tone, and at what pitch.

Additional participants use extra keyboards attached to the client machines.

Pancho sat at the desk and saw that the computer had a keyboard attached to it.

This allows it to work with or without a keyboard attached.

In group piano classes, which are required for most music majors, students can use digital keyboards attached to computers.

One can see wires running through his clothes, as well as a keyboard attached to his pant leg.

There, you essentially look over the shoulder of an expert and patient typist, whose ghostly hands are poised on a keyboard attached to a computer monitor.

He rested his fingers upon a keyboard attached to the communications terminal.

You wouldn't want a full-sized keyboard attached to your smartphone - it would ruin the experience.

They are television sets the size of lunch boxes with keyboards attached.