Conventional computers, running on Microsoft's Windows operating system and other programs, which once dominated the tech industry are losing market share to Apple's iPhone and its iPad tablet computer.
Market cap is the dollar value of a company's outstanding shares. On Wednesday, Apple Inc.'s shares dropped $1.11 to close at $244.11, making its market cap about $222 billion.
But Microsoft Corp.'s stock fell $1.06, or 4.1 percent, to close at $25.01, for market cap of about $219 billion.
Will this be an ongoing trend for Apple or is this only a temporary setback for Microsoft ?
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