Shares of Systemax ( SYX) were among technology's winners Friday, jumping 18% after the computer distributor posted big second-quarter earnings and revenue gains.

For the quarter ended June 30, the company earned $7.1 million, or 19 cents a share, on revenue of $547.2 million. During the year-earlier period, the company earned $1.5 million, or 4 cents a share, on revenue of $506.1 million.

"I am very pleased with our strong operating performance in the second quarter, highlighted by an 8% sales increase and the continued benefits of the cost cutting, streamlining and restructuring actions that we have implemented over the last two years," said Chairman and CEO Richard Leeds in a statement. Systemax shares were trading up $2.13 to $14.25.

Advanced Semiconductor Engineering ( ASX) soared 15% after the Taiwan-based company said it has received an "indication of interest" from a group of investors led by the Carlyle Group. The potential offer would be worth $5.94 per American depositary share, or nearly $5.5 billion. The price would represent a premium of 13% over Wednesday's closing price of $5.26.

Advanced Semiconductor's chairman, Jason Chang, has agreed to participate as a member of the consortium and to roll the shares of ASE owned by him and his ASE Enterprises holding company into an equity interest in the holding company created by the consortium. Chang and his affiliated holding company own about 18.4% of the shares. Advanced Semiconductor shares were trading up 81 cents to $6.07.

Shares of VocalTech Communications ( VOCL) jumped 19% after the company raised its gross margin guidance for the year. For the third quarter, VocalTech recorded a loss of $1.4 million on revenue of $1.8 million. Excluding stock-based compensation costs, the company reported a loss of $1.1 million. A year earlier period, the company posted a loss of $500,000 on revenue of $2.2 million.

Looking ahead, VocalTech sees full-year revenue of more than $9 million, in line with its previous guidance. Gross margins, meanwhile, are now seen at about 60%, above the company's earlier view of 50% to 56%. Shares were trading up 79 cents to $4.99.

Quest Software ( QSFT) fell 2% after the software company said its senior vice president of corporate development resigned after he declined to be interviewed by a special committee investigating the company's historical stock option grant practices. The resignation of Brinkley Morse is effective immediately. Shares were trading down 27 cents to $15.32.

Other technology movers Friday included Sirius Satellite Radio ( SIRI), down 4 cents to $4.25; Intel ( INTC), down 26 cents to $21.47; Microsoft ( MSFT), down 22 cents to $29.70; Dell ( DELL), up 23 cents to $27.36; Apple Computer ( AAPL), up 47 cents to $90.78; Lucent Technologies ( LU), down 1 cent to $2.55; Cisco Systems ( CSCO), down 22 cents to $26.69; and Sun Microsystems ( SUNW), down 4 cents to $5.55.

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