Revenue for the personal computer division rose 19 percent, to $6 billion, as unit shipments increased 35 percent.

As for unit shipments, HP holds the top spot with 30.2 percent of the market.

The preliminary results show that the company had healthy growth in the fourth quarter, with unit shipments up 27 percent.

Dell again led industry growth in unit shipments, revenue and earnings.

But the company's unit shipments grew at more than twice the industry rate as Dell continued to gain market share from other manufacturers.

Hewlett's personal computer business was also unusually strong, with unit shipments up 16 percent from last year.

We think unit shipments this year will be flat to up 1 percent.

However, the growth in unit shipments and market comes with a price.

Dell said its unit shipments had grown at four times the industry average.

Revenue grew faster than did unit shipments, and the average system selling price was higher than a year ago.