Underlining its commitment to the Unix systems software market, Eastman Kodak Co, of Rochester, New York has agreed for its last acquisition in the field, Interactive Systems Corp, Santa Monica, California to buy up-and-coming Unix communications software specialist Lachman Associates Inc. Definitive agreement is expected within 90 days. Interactive was an early implementer of Unix versions for specific hardware architectures and contributed some of IBM’s early Unix offerings; it is now majoring on Unix for the 80386. Lachman Associates is best known for its networking and telecommunications services and products, which include implentations of Network File System, the TCP/IP protocol, and Integrated Systems Digital Networking software. The move, says Interactive, is a major step towards its strategic goal of being the leading supplier of systems software products and services in the Unix and Open Systems markets. Based in Naperville, Illinois, privately-held Lachman Associates employs over 170.