By Rex Crum, MarketWatch

SAN FRANCISCO (MarketWatch) -- Tech stocks showed a few signs of life Tuesday, with small gains from the likes of Seagate Technology and Fusion-io Inc., but the overall sector put in another day of losses following the previous day's broad declines.

Seagate (STX) shares rose 1% to $45.61 after the hard-disk drive maker said it purchased 32.7 million shares of its stock from Samsung Electronics Co. Samsung had received 45 million shares of Seagate stock when Seagate bought Samsung's hard-disk drive division in 2011. Samsung still owns about 12.5 million shares of Seagate stock.

Memory-technology company Fusion-io (FIO) rose almost 7% to $14.65 a share, and small gains also came from Nvidia Corp. (NVDA), Western Digital Corp. (WDC) and Apple Inc. (AAPL).

Apple rose $2.34 a share, to $490, following reports that the company will expand its iTunes Radio service to the United Kingdom and Canada by early 2014. Pandora Media Inc. (P), which is considered the leading Internet radio company, yet doesn't have service agreements in the U.K. or Canada, was down by 2.7%, at $25.59 a share.

Hewlett-Packard Co. (HPQ) was off by 1%, at $20.70 a share, a day ahead of the company's annual meeting with Wall Street financial analysts.

Amazon.com Inc. (AMZN) shed 1%, to $307 a share, and IBM Corp. (IBM) was also down by about 1%, at $180.31. A U.S. federal court ruled in favor of Amazon in a case involving a cloud computing contract with the Central Intelligence Agency. IBM wanted the government to reopen the $600 million contract, which the CIA had awarded to Amazon.

Social-networking stocks were having a rough day, with LinkedIn Corp. (LNKD) off by 4.6% at $226.20; Angie's List Inc. (ANGI) down almost 4%, at $15.48, Facebook Inc. (FB) falling 3%, to $49.01 and Yelp Inc. (YELP) off by 4.5%, at $66.83 a share.

The Nasdaq Composite Index (RIXF) fell 20 points to 3,750 and the Philadelphia Semiconductor Index (SOX) was also in the red.

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