According to International Data Corporation (IDC), PC sales have been forecasted to drop by 4.9 percent this year as compared to last year's 3.3 percent fall.
Intel, the key chipmaker for the PC business, said its first quarter revenue would be around US$12.8 billion, down from the about 13.7 billion dollars it had earlier expected, reported PCWorld.
About 293 million PCs are expected to be shipped this year, according to IDC.
The research firm cut its forecast as it expects the stronger U.S. dollar will make computers more expensive in many countries.
The PC business was earlier largely expected to be sidelined by tablets, but it turns out that these devices are also facing a rough patch, in part because of larger-screen phones.