page_title: Sun-2
section_title: Sun-2 models
hierarchical_section_title: Sun-2 / Sun-2 models
caption_attribution_description: A Sun Microsystems 2/50 diskless workstation
context_page_description: The Sun-2 series of UNIX workstations and servers was launched by Sun Microsystems in November 1983. As the name suggests, the Sun-2 represented the second generation of Sun systems, superseding the original Sun-1 series. The Sun-2 series used a 10 MHz Motorola 68010 microprocessor with a proprietary Sun-2 Memory Management Unit, which enabled it to be the first Sun architecture to run a full virtual memory UNIX implementation, SunOS 1.0, based on 4.1BSD. Early Sun-2 models were based on the Intel Multibus architecture, with later models using VMEbus, which continued to be used in the successor Sun-3 and Sun-4 families.
  Sun-2 systems were supported in SunOS until version 4.0.3.
  A port to support Multibus Sun-2 systems in NetBSD was begun in January 2001 from the Sun-3 support in the NetBSD 1.5 release. Code supporting the Sun-2 began to be merged into the NetBSD tree in April 2001. sun2 is considered a tier 2 support platform as of NetBSD 7.0.1.
context_section_description: Models are listed in approximately chronological order.
  A desktop disk and tape sub-system was introduced for the Sun-2/50 desktop workstation.  It could hold a 5 ¼" disk drive and 5 ¼" tape drive.  It used DD-50 (sometimes erroneously referred to as DB-50) connectors for its SCSI cables, a Sun specific design.  It was often referred to as a "Sun Shoebox".
  Sun-1 systems upgraded with Sun-2 Multibus CPU boards were sometimes referred to as the 2/100U (upgraded Sun-100) or 2/150U (upgraded Sun-150).
  A typical configuration of a monochrome 2/120 with 4 Mb of memory, 71 Mb SCSI disk and 20 Mb 1/4" SCSI tape cost $29,300 (1986 US price list).
  A color 2/160 with 8Mb of memory, two 71 Mb SCSI disks and 60 Mb 1/4" SCSI tape cost $48,800 (1986 US price list).
  A Sun 2/170 server with 4Mb of memory, no display, two Fujitu Eagle 380 Mb disk drive, one Xylogics 450 SMD disk controller, a 6250 bpi 1/2 inch tape drive and a 72" rack cost $79,500 (1986 US price list).
caption: Sun 2/50 diskless workstation
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