EXHIBIT 11 DATA I/O CORPORATION COMPUTATION OF EARNINGS PER SHARE Earnings per share reported in Form 10-Q for the quarters ended September 28, 1995, and September 29, 1994 are based on the following (In thousands): Quarters Ended Nine Months Ended ---------------------- ----------------------- Sept. 28, Sept. 29, Sept. 28, Sept. 29, Primary and fully diluted: 1995 1994 1995 1994 - -------------------------- ---------- --------- --------- --------- Weighted Average Shares Outstanding 7,613 7,372 7,539 7,334 Dilutive Effect of Stock Options 432 50 408 40 ----- ----- ----- ----- Weighted Average Common and Equivalent Shares Outstanding 8,045 7,422 7,947 7,374 ----- ----- ----- ----- ----- ----- ----- ----- Page 17