DATA I/O CORP — Director's Dealing 2003

Jul 31, 2003

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DATA I/O CORP (daio)
CIK: 0000351998
Period of Report: 2003-07-30

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2003-07-30	Data I/O	S	100	$3.43	Disposed	970101	Indirect