IBM Puts PC Unit Up for Sale - NY Times  NEW YORK (Reuters) - International Business Machines Corp.  &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=IBM.N target=/stocks/quickinfo/fullquote"&gt;IBM.N&lt;/A&gt; has put its personal computing business up for sale in  a deal that could be worth as much as \$2 billion, the New York  Times reported on Friday.