It is also a force in digital loop carriers, which convert multiple voice calls into a single digital signal and can use either copper or fiber-optic cables.

FORBES: Laggard

The band makes its music with a looping software program, created by guitarist and keyboardist Brent Knopf while in college, called Deeler, short for Digital Loop Recorder.

NPR: First Listen: Menomena, 'Mines'

And the product examples you cite attest to Alcatel's U.S. market leadership in the fast-growing optical submarine network, ADSL broadband Internet access and digital-loop carrier product areas.

FORBES: Readers Say

"The loop of digital design is key to our operation, " Wirth said.

BBC: Lucas di Grassi joins new-look Virgin Formula 1 team

Every schoolkid since the late 1950s probably remembers a self-study reader program just like this, from SRA. All that's really different in the digital age is the feedback loop.

FORBES: Instant feedback in the classroom