Interactive Systems Corporation
| Industry | Computer software |
|---|---|
| Founded | 1977 |
| Founder | Peter G. Weiner |
| Fate | Acquired by the Eastman Kodak Company in 1988 |
| Headquarters | , |
| Products | IS/1, IS/3, IS/5, PC/IX, 386/ix, INTERACTIVE UNIX System V/386 |
Interactive Systems Corporation (styled INTERACTIVE Systems Corporation, abbreviated ISC) was a US-based software company and the first vendor of the Unix operating system outside AT&T, operating from Santa Monica, California. It was founded in 1977 by Peter G. Weiner, a RAND Corporation researcher who had previously founded the Yale University computer science department and had been the Ph.D. advisor to Brian Kernighan, one of Unix's developers at AT&T. Weiner was joined by Heinz Lycklama, also a veteran of AT&T and previously the author of a Version 6 Unix port to the LSI-11 computer.
ISC was acquired by the Eastman Kodak Company in 1988, which maintained the company as a wholly owned subsidiary operating under Kodak's Commercial Imaging Group. ISC expanded under Kodak's ownership, acquiring networking software developer Lachman Associates in 1989 and the VP/ix "DOS-under-UNIX" software from Phoenix Technologies in 1991. Kodak later sold its ISC Unix operating system assets to Sun Microsystems on September 26, 1991. Kodak sold the remaining parts of ISC to SHL Systemhouse Inc in 1993.
Several former ISC staff founded Segue Software which partnered with Lotus Development to develop the Unix version of Lotus 1-2-3 and with Peter Norton Computing to develop the Unix version of the Norton Utilities.