Computer Associates to Cut Jobs by 5 Pct.  NEW YORK (Reuters) - Software maker Computer Associates  &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=CA.N target=/stocks/quickinfo/fullquote"&gt;CA.N&lt;/A&gt; on Wednesday said it would cut 800 jobs, or 5 percent of  its work force, to pare costs amid stiff competition in  software and services.