Dell (NASDAQ: DELL ), whose competitors include Apple (NASDAQ: AAPL), Hewlett-Packard (NYSE: HPQ), Intel (NASDAQ: INTC) and Microsoft (NASDAQ: MSFT), reported results for the second quarter on Thursday after the market closed. Like many others, I wasn't expecting the bottom-line results to miss estimates. But it did.

The top line was okay. Net sales increased 11% to $16.4 billion, beating estimates that called for growth of around 8%. But earnings per diluted share were not okay. They came in at 31 cents, a 6% decrease in terms of year-over-year comparisons. Wall Street was looking for 36 cents per diluted share. Costs went up at a greater rate than sales growth, driving the gross margin down. As can be seen, Dell needs to better manage its cost structure so that it may protect its margins. It's a shame that the company couldn't have grown the bottom line considering the nice revenue gain.

Not only was the profit drop disillusioning, but the operational cash flow was likewise disappointing. It dropped 40% during the quarter, and it decreased 29% over the least six months. Dell watches its cash flow carefully, and it would like the money generated from operations to exceed the net-earnings figure. So far, the company has fallen short in this regard. However, according to the transcript, Dell's CFO, Brian T. Gladden, believes that operational cash flow will exceed net earnings. Shareholders obviously hope that he'll be ultimately proven correct on this prediction.

Dell (NASDAQ: DELL), a PC maker whose rivals include Apple (NASDAQ: AAPL) and Hewlett-Packard (NYSE: HPQ), is due to report second-quarter numbers on Thursday, August 28, after the market close. It's going to be interesting to see what the company says about demand levels for its PCs. We're still working our way through a tough economic period, so in some respects, this will be a sign of how the consumer is faring.

Of course, Dell has been trying to stage a comeback lately even without regard to the economy. As with any once-hot growth stock, there comes a time when the capital appreciation starts to slow and gains are digested. Dell's shares have cooled over the last several years. Dell's stock has decreased over 21% over the five-year timeframe, and 29% over the last three years.

Lately, though, the stock has been stronger and, appreciating over 20% in the past six months, and nearly 7% in the past month alone.

Dell is expected to report a double-digit increase in the bottom line this Thursday. The call is for 36 cents per share, according to Earnings.com. Last year at this time, Dell posted earnings of 32 cents per share. Looking at the history of Q2 results, I'd say it's a decent bet that the company meets expectations. If management were to blow the estimates out of the water, it would be impressive, but my gut says that won't happen. According to Trey Thoelcke, top-line revenues should expand by roughly 8%.

I used to be a big fan of Dell (NASDAQ: DELL) years back, but I've since been cool on the company due to the challenges it's faced as of late. Yet the company's first-quarter stats, released on Thursday after the closing bell, were interesting. Revenues increased 9% to a whopping $16 billion. Net income increased 12% to $0.38 per share. Briefing.com says that Dell beat on revenues and earnings per share, the latter by a nice $0.04.

Operating income actually dropped, however, 4% on a dollar basis. Still, in the after-hours session, investors sent the shares higher by nearly 10%. One thing I liked about the quarter was that operational cash flow was much healthier this time around. Last year, Dell needed to use $99 million to fund operations; this year, Dell booked $143 million in cash from operations. Awesome improvement. And here's something else shareholders should look positively on: management apparently wants to focus on having operational cash flow exceed net income. A laudable goal in my book.

So, this was a decent quarter. Am I buying? Well... not exactly. Personally, if I want to play personal computers, I'm probably more likely to look at either Hewlett-Packard (NYSE: HPQ) or Apple (NASDAQ: AAPL). I recently wrote about H-P's good quarterly numbers, and as far as Apple goes, that stock is definitely the one to go with in terms of strength and excitement (if you can time the entry points properly, of course). Yeah, I'm just not feeling Dell right now, considering the alternatives; maybe at a later date...

Read the full transcript of the conference call that followed the earnings announcement.)

Disclosure: I don't own shares in any company mentioned in this piece; positions can change at any time.

Hewlett-Packard (NYSE: HPQ), an arch competitor of Dell (NASDAQ: DELL), reported Q2 earnings on Tuesday. Looking through the release, I see quite a few things to like about the H-P story.

Revenues increased 11% to $28.3 billion. This increase was aided by international sales and the weak dollar. On an adjusted basis, earnings per share increased 24% to 87 cents. Furthermore, the adjusted operating margin increased 100 basis points to 10%. Cash generated from operations was $4.8 billion during the quarter, which the release categorized as a record statistic. Cash flow is one of my favorite metrics, and I love it when it is doing well. In fact, according to the transcript of the conference call at Seeking Alpha, the six-month operational cash-flow figure had increased 92% over the comparable time frame one year ago, and free cash flow had more than doubled for the same period.

Honestly, it seems like H-P is managing itself very skillfully, leveraging its various brands in the PC sector to great effect. Guidance calls for adjusted earnings of $3.54 and $3.58. This means that, in my opinion, H-P's stock isn't too expensive. It's also trading away from the 52-week high, which is another positive. Of course, the big story surrounding the company at the moment is its announced acquisition of Electronic Data Systems (NYSE: EDS). As Tom Taulli has observed, the EDS buy is logical. Combining H-P's expertise at providing technologies to the PC world with the services portfolio provided by EDS will most likely make HP an even bigger force, and it could give a behemoth like IBM (NYSE: IBM) new challenges.