13G Filing: Penbrook Management and Data I/O Corp (DAIO)

CUSIP No. 237690102 13G Page 11 of 13 Pages

Item 10. Certifications.

(a) The following certification shall be included if the statement
is filed pursuant to Rule 13d-1(b):

“By signing below I certify that, to the best of my
knowledge and belief, the securities referred to above were acquired and
are held in the ordinary course of business and were not acquired and not
held for the purpose of or with the effect of changing or
influencing the control of the issuer of the securities and were not
acquired and are not held in connection with or as a participant in any
transaction having such purpose or effect.”

(b) The following certification shall be included if the
statement is filed pursuant to Rule 13d-1(c):

“By signing below I certify that, to the best of my
knowledge and belief, the securities referred to above were not
acquired and are not held for the purpose of or with the effect of
changing or influencing the control of the issuer of the securities
and were not acquired and are not held in connection with or as a
participant in any transaction having such purpose or effect.”