Saturday, September 25, 2010

Dell accused of the largest mergers and acquisitions worth the



PC industry last quarter's profit margin is only 5.2% for IT services, Dell decided to shot. Yesterday, Dell offered to 3.9 billion offer to acquire a IT service provider Perot Systems. If successful, this is Dell's largest in the history of M & A time scale.

It is reported that, Perot Systems is a healthcare IT services in the many achievements of the company, has been established for 21 years. The outside world that its style is strong and solid, so Dell is shot in such a company to expand its IT services business is not surprising.

Currently, Dell is the world's second-largest PC maker, which has about 60% of revenue from the PC market. The more worthless the PC to be like other technology giants Dell, Hewlett-Packard, IBM, like through the IT services industry to upgrade their profit margins to ensure that shareholders and investors to cross.

But Wall Street analysts say that, despite the acquisition of Perot Systems and Dell not wrong, but wrong is not worth the price. It is reported that the acquisition premium of up to 67.5%. 3.9 billion of the purchase price is Perot Systems currently 1.4 times revenue, while last year on IT services giant EDS Hewlett-Packard's purchase price is 0.6 times the latter revenue. Analysis, although some expensive, but it fully illustrates the Dell PC industry want to get rid of over-reliance on the plight of the urgent mood.

Dell's side said that the acquisition of Perot Systems, 2012-year company revenue for Dell.







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Tuesday, September 14, 2010

Useful time of the class



Very often, a piece of code we need to calculate the time-consuming operation, we often write:

The first case, to the millisecond.

clock_t start = null, end = null;

double duration = 0;

start = clock ();

/ / Operation statements here

end = clock ();

duration = (double) (end - start) / CLOCK_PER_SEC;

Second case, accurate to seconds.

time_t start = null, end = null;

int duration = 0;

start = time (NULL);

/ / Operation statements here

end = time (NULL);

duration = end - start;

Is the time to code in C + + projects can be reused, we can to package.

The scope of the object to the use of computing time. Of course, these classes can only be used in certain occasions.

class TimeCost

(

public:

TimeCost () (m_cur = time (NULL);

~ TimeCost ()

(

time_t cur = time (NULL);

prinftf ("Time cost is% d s
", Cur - m_cur;

)

private:

time_t m_cur;

)



class TimeCost2

(

public:

TimeCost2 () (m_cur = clock ();)

~ TimeCost2 ()

(

clock_t cur = clock ();

double cost = (double) (cur - m_cur) / CLOCK_PER_SEC;

printf ("Time cost:% f s
", Cost);

)

private:

clock_t m_cur;

)

Of course, the biggest drawback of these two classes is the strict calculation of time depends on the object's lifetime.






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