HEADLINE STOCKS-Some U.S. stocks on the move on July 8

(Updates to after the open, adds Cisco, AT&T, Goldman/Morgan Stanley and Tractor Supply)

NEW YORK, July 8 (Reuters) - Some U.S. stocks on the move on Wednesday:

ALCOA INC (AA.N)

The aluminum company is scheduled to report its quarterly results after the closing bell, unofficially kicking off the second-quarter earnings season.

Shares of the Dow component rose 2.1 percent to $9.61.

GOOGLE INC (GOOG.O)

The Internet search company is planning to launch a personal computer operating system in the second half of 2010, a move that takes direct aim at Microsoft's (MSFT.O) Windows product. [ID:nL8468341]

Shares of Google rose 0.7 percent to $399.50 while Microsoft, a Dow component, fell 1 percent to $22.30.

FAMILY DOLLAR STORES INC (FDO.N)

The company reported third-quarter results that beat expectations.

Shares gained 10 percent to $30.60.

TRACTOR SUPPLY CO (TSCO.O)

The company forecast second-quarter earnings above expectations and raised its full-year outlook. [ID:nBNG406026]

Shares soared 11 percent to $44.68.

CISCO SYSTEMS INC (CSCO.O)

The company named Ned Hooper chief strategy officer. Hooper was previously the head of the company's consumer business. [ID:nN08373340]