Leidos, Inc. Watch

from SC 13D/A 12 pages Voting Agreement

from SC 13G/A 1 page Joint Filing Agreement

from SC 13G/A ~1 page Joint Filing Agreement

from SC 13G/A 1 page Joint Filing Agreement

from 8-K 26 pages Science Applications International Corporation $300,000,000 5 1/2% Notes Due 2033 Purchase Agreement

from SC 13G/A 1 page Joint Filing Agreement

from SC 13G/A 1 page <page> Exhibit 1 Joint Filing Agreement This Will Confirm the Agreement by and Between Each of the Undersigned, in Accordance With Rule 13d-1(k)(1) Under the Securities Exchange Act of 1934, as Amended, That the Schedule 13g Filed on or About This Date With Respect to the Beneficial Ownership of the Undersigned of Shares of the Common Stock, Par Value $0.001 Per Share, of Geoworks Corporation Is Being Filed on Behalf of Each of the Undersigned. This Agreement May Be Executed in Two or More Counterparts, Each of Which Shall Be Deemed an Original, but All of Which Together Shall Constitute One and the Same Instrument. Dated: February 7, 2003 Science Applications International Corporation By: /S/ Douglas E. Scott Name: Douglas E. Scott Title: Senior Vice President and General Counsel Telcordia Venture Capital Corporation By: /S/ Gian A. Brown Name: Gian A. Brown Title: General Counsel Page 9 of 9

from 8-K ~20 pages Underwriting agreement

from SC 13G 1 page <page> 1 Exhibit 1 Joint Filing Agreement This Will Confirm the Agreement by and Between Each of the Undersigned, in Accordance With Rule 13d-1(k)(1) Under the Securities Exchange Act of 1934, as Amended, That the Schedule 13g Filed on or About This Date With Respect to the Beneficial Ownership of the Undersigned of Shares of the Common Stock, Par Value $.001 Per Share, of Valence Technology, Inc., Is Being Filed on Behalf of Each of the Undersigned. This Agreement May Be Executed in Two or More Counterparts, Each of Which Shall Be Deemed an Original, but All of Which Together Shall Constitute One and the Same Instrument. Dated: December 28, 2000 Science Applications International Corporation By: /S/ J. Dennis Heipt Name: J. Dennis Heipt Title: Corporate Executive Vice President and Secretary Telcordia Technologies, Inc. By: /S/ Grant L. Clark Name: Grant L. Clark Title: Vice President and General Counsel Telcordia Venture Capital Corporation By: /S/ Kevin A. Werner Name: Kevin A. Werner Title: President Page 10 of 10

from SC 13G 1 page <page> 1 Exhibit 1 Joint Filing Agreement This Will Confirm the Agreement by and Between Each of the Undersigned, in Accordance With Rule 13d-1(k)(1) Under the Securities Exchange Act of 1934, as Amended, That the Schedule 13g Filed on or About This Date With Respect to the Beneficial Ownership of the Undersigned of Shares of the Common Stock, Par Value $.01 Per Share, of Daleen Technologies, Inc., Is Being Filed on Behalf of Each of the Undersigned. This Agreement May Be Executed in Two or More Counterparts, Each of Which Shall Be Deemed an Original, but All of Which Together Shall Constitute One and the Same Instrument. Dated: December 6, 2000 Science Applications International Corporation By: /S/ Douglas E. Scott Name: Douglas E. Scott Title: Senior Vice President and General Counsel Saic Venture Capital Corporation By: /S/ Ira J. Miller Name: Ira J. Miller Title: Chief Financial Officer Page 9 of 9

from SC 13G 1 page <page> 1 Exhibit 1 Joint Filing Agreement This Will Confirm the Agreement by and Between Each of the Undersigned, in Accordance With Rule 13d-1(k)(1) Under the Securities Exchange Act of 1934, as Amended, That the Schedule 13g Filed on or About This Date With Respect to the Beneficial Ownership of the Undersigned of Shares of the Common Stock, Par Value $.01 Per Share, of Intrusion.com, Inc., Is Being Filed on Behalf of Each of the Undersigned. This Agreement May Be Executed in Two or More Counterparts, Each of Which Shall Be Deemed an Original, but All of Which Together Shall Constitute One and the Same Instrument. Dated: September 22, 2000 Science Applications International Corporation By: /S/ Douglas E. Scott Name: Douglas E. Scott Title: Senior Vice President and General Counsel Saic Venture Capital Corporation. By: /S/ Ira J. Miller Name: Ira J. Miller Title: President Page 9 of 9

from SC 13G 1 page <page> 1 Exhibit 1 Joint Filing Agreement This Will Confirm the Agreement by and Between Each of the Undersigned, in Accordance With Rule 13d-1(k)(1) Under the Securities Exchange Act of 1934, as Amended, That the Schedule 13g Filed on or About This Date With Respect to the Beneficial Ownership of the Undersigned of Shares of the Common Stock, Par Value $0.001 Per Share, of Geoworks Corporation, Is Being Filed on Behalf of Each of the Undersigned. This Agreement May Be Executed in Two or More Counterparts, Each of Which Shall Be Deemed an Original, but All of Which Together Shall Constitute One and the Same Instrument. Dated: August 18, 2000 Science Applications International Corporation By: /S/ Douglas E. Scott Name: Douglas E. Scott Title: Senior Vice President and General Counsel Telcordia Technologies, Inc. By: /S/ Grant Clark Name: Grant Clark Title: Vice President and General Counsel

from SC 13D ~5 pages Stockholder and Voting Agreement

from S-3/A ~20 pages Underwriting Agreement