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

CUSIP No. 237690102 13G Page 9 of 13 Pages

Item 1(a). Name of Issuer: Data I/O Corp.

Item 1(b). Address of Issuer’s Principal Executive Offices:
6464 185th Avenue NE, Suite 101, Redmond, WA 98052

Item 2(a). Name of Person Filing: This Statement on Schedule 13G is filed by
Penbrook Management, LLC., AnKap Partners, L.P., AnKap LLC.,
Robert S. Anderson, Ralph Kaplan, Barbara Burke DiCostanzo,
Ward Anderson.

Item 2(b). Address of Principal Business Office, or if None, Residence:
880 Third Avenue, 16th Floor, New York, NY 10022.

Item 2(c). Citizenship:
See pages 2,3,4,5,6 7 and 8

Item 2(d). Title of Class of Securities:
Common Stock, $0.01 par value per share

Item 2(e). CUSIP Number:
237690102

Item 3. If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b)
or (c), Check Whether the Person Filing is a:

(a) |_| Broker or dealer registered under Section 15 of the Exchange
Act.

(b) |_| Bank as defined in Section 3(a)(6) of the Exchange Act.

(c) |_| Insurance company as defined in Section 3(a)(19) of the
Exchange Act.

(d) |_| Investment company registered under Section 8 of the
Investment Company Act.

(e) |_| An investment adviser in accordance with Rule
13d-1(b)(1)(ii)(E);

(f) |_| An employee benefit plan or endowment fund in accordance with
Rule 13d-1(b)(1)(ii)(F);

(g) |_| A parent holding company or control person in accordance with
Rule 13d-1(b)(1)(ii)(G);

(h) |_| A savings association as defined in Section 3(b) of the
Federal Deposit Insurance Act;

(i) |_| A church plan that is excluded from the definition of an
investment company under Section 3(c)(14) of the Investment
Company Act;

(j) |_| Group, in accordance with Rule 13d-1(b)(1)(ii)(J).