After having already warned in May that global tech spending is weakening faster than anticipated, the world's second-ranking PC maker, Dell, forecast on Tuesday that its third-quarter revenue will be lower than the second-quarter figures; but the projections missed Wall Street estimates complied by Bloomberg.

While Dell predicted that its third-quarter revenue will plunge 2 percent to 5 percent - that is, $13.8 billion to $14.2 billion - vis-a-vis its second-quarter revenue; Wall Street analysts had estimated the company's third-quarter revenue to be $14.85 billion.

Moreover, slashing its profit outlook by 20 percent, Dell also forecast that its earnings per share for fiscal 2013 would be "at least" $1.70; which also fell short of the average figure of $1.90, estimated by Wall Street analysts.

Dell's forecast of lower-than-estimated third-quarter figures is apparently an upshot of the fact that the company's second-quarter net income plunged to $732 million from the previous year same quarter figure of 4890 million. The second-quarter sales of the company also plunged 7.5 percent to $14.5 billion, missing the average estimate of $14.6 billion sales by analysts.

With weakening PC demand also leading to a 22 percent plunge in Dell's second-quarter consumer revenue to $2.6 billion, analyst Maynard Um - from Wells Fargo Securities in New York - said: "Part of the problem Dell is having is the macro environment. The end markets are not buying, though the company has done a good job controlling expenses."