X0202 3 2005-10-28 0 0000351998 DATA I/O CORP DAIO 0001343613 Weigelt Harald LOCHHAMER SCHLAG 5 GRAEFELFING 2M D82166 GERMANY 0 1 0 0 Vice President World Wide Sale Common Stock 18352 D Employee Stock Option (right to buy) 2.453 2003-12-08 2005-12-08 Common Stock 3000 D Employee Stock Option (right to buy) 2.4065 2001-01-29 2009-01-29 Common Stock 5000 D Employee Stock Option (right to buy) 3.469 2004-12-08 2006-12-08 Common Stock 5000 D Employee Stock Option (right to buy) 1.33 2002-07-25 2008-04-25 Common Stock 7500 D Employee Stock Option (right to buy) 1.00 2003-07-17 2009-04-17 Common Stock 15000 D Employee Stock Option (right to buy) 2.93 2004-09-17 2010-06-17 Common Stock 15000 D Employee Stock Option (right to buy) 2.49 2005-09-21 2011-06-21 Common Stock 15000 D The option is exercisable in 16 equal quarterly installments. The first installment became exercisable on 7/25/2002. The option is exercisable in 16 equal quarterly installments. The first installment became exercisable on 7/17/2003. The option is exercisable in 16 equal quarterly installments. The first installment became exercisable on 9/17/2004. The option is exercisable in 16 equal quarterly installments. The first installment became exercisable on 9/21/2005. By:/s/ Joel. S. Hatlen, by Power of Attorney 2005-11-07