New book on physical computation

If you're reading this, chances are you're doing so on a smartphone or a computer. Experts would call the manipulation of electricity that brings us web pages, email and digital photographs "physical computation."

US clears $2.3 bln Lenovo deal for IBM unit

IBM said Friday that US authorities had cleared a $2.3 billion deal allowing China-based Lenovo to take over its server unit after a national security review.

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