1 EXHIBIT 10.1 FOURTH MODIFICATION TO BUSINESS LOAN AND SECURITY AGREEMENT THIS FOURTH MODIFICATION TO BUSINESS LOAN AND SECURITY AGREEMENT (this "Modification") is made as of the 12th day of February, 1997, by and among (i) NATIONSBANK, N.A., a...Business Loan and Security Agreement • June 30th, 1997 • BTG Inc /Va/ • Services-computer integrated systems design
