Exhibit 2.1 STOCK PURCHASE AGREEMENTStock Purchase Agreement • January 6th, 2003 • Dynamics Research Corp • Services-computer integrated systems design • Massachusetts
AMENDMENT TO AMENDED AND RESTATED LOAN AGREEMENT DATED JUNE 28, 2002 AMONG DYNAMICS RESEARCH CORPORATION, DRC ENCODER, INC., DRC METRIGRAPHICS, INC., DRC SOFTWARE, INC.,DRC TELECOM, INC., DYNAMICS RESEARCH INVESTMENT CORPORATION, DRC INTERNATIONAL...Loan Agreement • January 6th, 2003 • Dynamics Research Corp • Services-computer integrated systems design • Massachusetts
