including dictating the style of C programming used via KNF in the style man page. Alongside the Free Software Foundation and Linux, the CSRG laid the foundations of the open source community. Former members include Keith Bostic, Bill Joy, Marshall Kirk McKusick, Samuel J. Leffler, Özalp Babaoğlu and Michael J. Karels, among others. The corporations Sun Microsystems, Berkeley Software Design and Sleepycat Software (later acquired by Oracle) can be considered spin-off companies of CSRG. Berkeley Software Design was led by Robert Kolstad, who led the development of BSD Unix for supercomputers at Convex Computer. See also Mach (kernel) References External links The Computer Systems Research Group 1979 — 1993 A more detailed article Berkeley Software Distribution Science and technology in the San Francisco Bay Area University of California, Berkeley Unix history Research groups