1. BERKELEY UNIX

2. INTRODUCTION Berkeley Software Distribution (BSD, sometimes called Berkeley Unix) is the UNIX oprating system derivative, developed and distributed by the Computer System Research Group (CSRG) , of the University of California, Berkeley, from 1977 to 1995.

3. BSD Berkeley Software Distribution (BSD, sometimes called Berkeley Unix) is the UNIX operating system derivative developed and distributed by the Computer Systems Research Group (CSRG) of the University of California, Berkeley, from 1977 to 1995.

5. Dr. Bob Fabryfrom Berkeley attends and later obtains a copy of UNIX

6. UNIX is installed on several Berkeley PDP/11’s

8. mid-1978 - 2BSD released with improved Pascal, termcap, vi (about 75 shipped)

9. 1978 - Berkeley obtains a VAX-11/780

11. virtual memory

12. std 32/V utilities

13. all BSD additions

15. wants to have common platform (reduced porting costs on different/w and os’s)

16. desires distributed network

17. UNIX chosen to solidify DARPA userbase

19. over 1000 shipped - Very popular

20. 1986 - 4.3BSD released w/ BSD TCP/IP stack

21. AT&T did not have networking/fast file system.

22. These were later incorporated into System V using BSD code (which turned out to be a good thing)

24. AT&T continued to increase the license cost.

25. PC vendors wanted the TCP/IP stack code, so this was split out.

26. 1989 - Networking Release 1

28. virtual memory system from the MACH kernel

30. Bostic pioneers the technique of mass net-based development

31. All UNIX utilities re-written from scratch

32. Within 18 months, most lib’s/utilities rewritten

33. Karels, Bostic, and McKusick go through kernel, file-by-file rewriting 32/V code and removing it from the release

34. 1991 - Networking Release 2 begins distribution

36. BSDi heavily discounts source/binary products over System V

37. AT&T suit alleges BSDi products contain USL code/trade secrets

38. Counter suit is filed in California

40. NetBSD is focused on supporting as many platforms as possible

41. FreeBSD was formed a few months later and focuses on PC’s.

42. OpenBSD is focused on improving the security of BSD

43. Today work continues on BSD through the NetBSD, FreeBSD and OpenBSD distributions.

45. allowed research environment to grow UNIX

46. pioneered internet based open source development

47. released programs with code or as code

48. Open source has attracted a lot of attention.

49. Linux is probably the most well know

51. Comparison between Network Oss Performance

52. Comparison between Network Oss Free Applications

53. Comparison between Network OssPrice, and Total Cost of Ownership

54. Bar chart showing the proportion of users of each BSD variant from a BSD usage survey in 2005.Each participant was permitted to show multiple BSD variants

55. Most of the current BSD operating systems are open source and available for download, free of charge, under the BSD License, the most notable exception being Mac OS X. They also generally use a monolithic kernel architecture, apart from Mac OS X and DragonFly BSD which feature hybrid kernels. The various open source BSD projects generally develop the kernel and userland programs and libraries together, the source code being managed using a single central source repository. In the past, BSD was also used as a basis for several proprietary versions of UNIX, such as Sun's SunOS, Sequent's Dynix, NeXT's NeXTSTEP, DEC's Ultrix and OSF/1 AXP (now Tru64 UNIX). Of these, only the last is still currently supported in its original form. Parts of NeXT's software became the foundation for Mac OS X, among the most commercially successful BSD variants in the general market.

56. Significant Unix-like Operating System that Descends from BSD DragonFly BSD, a fork of FreeBSD to follow an alternative design, particularly related to SMP. PC-BSD and DesktopBSD, distributions of FreeBSD with emphasis on ease of use and user friendly interfaces for the desktop/laptop PC user. Nokia IPSO (IPSO SB variant), the FreeBSD-based OS used in Nokia Firewall Appliances. Juniper NetworksJunOS, the operating system for Juniper routers, a customized version of FreeBSD, and a variety of other embedded operating systems Apple Inc.'s Darwin, the core of Mac OS X; built on the XNU kernel (part Mach, part FreeBSD, part Apple-derived code) and a userland much of which comes from FreeBSD NetApp's ONTAP GX, the operating system for NetApp filers, is a customized version of FreeBSD with the ONTAP GX architecture built on top. NetBSD, an open source BSD with an emphasis on portability and clean design. OpenBSD, a 1995 fork of NetBSD, focuses on portability, standardization, correctness, proactive security and integrated cryptography.

57. F5 Networks, All F5 BIGIP Appliances use Free BSD as the underlying OS. DEC's Ultrix, the official version of Unix for its PDP-11, VAX, and DECstation systems OSF/1, a microkernel-based UNIX developed by the Open Software Foundation, incorporating the Mach kernel and parts of 4BSD Tru64 UNIX (formerly DEC OSF/1 AXP or Digital UNIX), the port of OSF/1 for DEC Alpha-based systems from DEC, Compaq and HP. Early versions of Sun MicrosystemsSunOS (up to SunOS 4.1.4), an enhanced version of 4BSD for the Sun Motorola68k-based Sun-2 and Sun-3 systems, SPARC-based systems, and x86-based Sun386i systems. NeXTNEXTSTEP and OPENSTEP, based on the Mach kernel and 4BSD; the ancestor of Mac OS X 386BSD, the first open source BSD-based operating system and the ancestor of most current BSD systems DEMOS, a Soviet BSD clone BSD/OS, a (now defunct) proprietary BSD for PCs

59. PRESENTED BY: Jessica Chan