HOPKINTON (CBS) — Dell is reportedly looking to buy Hopkinton-based EMC in what would be the biggest takeover deal in high-tech history.

The Wall Street Journal reports that Dell and private equity firm Silver Lake are in advanced talks to purchase EMC, and it could be a done deal within a week if it happens.

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Investors are not waiting to find out – shares of EMC were up almost 8 percent in after-hours trading.

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It’s unclear what the financials would look like, but EMC has a market cap of $50 billion.

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Analysts tell The Journal that Dell would benefit from EMC’s big data storage operation.