Tech stocks in focus: Apple, Google, Cisco, Dell

• Apple shares have fared poorly recently
• Google has unveiled a new music service
• Dell brings forward earnings release

Apple, Cisco, Dell and Google are among technology stocks that may be a focus for investors on Thursday.

Cisco's shares (CSCO) surged 9% before the opening bell. The firm's net income jumped 14% in the latest quarter as revenue at all four of its divisions rose for the first time in a year and a half.

Ahead of the market open, shares in Apple (AAPL) were off 0.81% to $425.39. The stock price was down 3.4% Wednesday to close at $428.85 per share. That's about 40% below their peak. The poor performance comes as well-known hedge funds have slashed their holdings in the iPhone and iPad maker.

Shares in Google (GOOG) added 0.23% to $918 in Thursday pre-market action. On Wednesday, Google shares jumped $28.79, or 3.3%, to $915.89 a share. At its highly anticipated I/O conference Wednesday, Google unveiled a monthly music subscription service and other new features.

Dell (DELL) made the rare decision to change the date of its fiscal first-quarter earnings announcement to Thursday, a week ahead of schedule. Dell is expected to report net income of $607.10 million on sales of $13.5 billion, according to consensus analyst estimates by Thomson Reuters.

Pre-market shares in Netflix (NFLX) added 0.24% to $243. 98 a day after hitting their highest level since Aug. 2011, according to Bloomberg.

The tech-heavy Nasdaq 100 index was up modestly by 0.04% to 3,003.25 before the start to regular trading.