DATA I/O CORP — Director's Dealing 2005

May 10, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DATA I/O CORP (DAIO)
CIK: 0000351998
Period of Report: 2005-05-09

Reporting Person: BISCO INDUSTRIES INC (Director, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-05-09	Data I/O	S	100	$2.66	Disposed	641316	Indirect