The Senate approved a former technology executive, Julius Genachowski, on Thursday as chairman of the Federal Communications Commission.

Senators also approved Robert M. McDowell to serve a second term on the commission, which regulates telephone, cable and broadcast companies.

Both nominees were confirmed by unanimous consent.

The White House said it had sent to the Senate the nominations of Meredith Attwell Baker, a former telecommunications official, and Mignon L. Clyburn, a South Carolina regulator, to serve on the commission.

The two would bring the F.C.C. to its full complement of five members for the first time during the administration of President Obama.