Sun-3 is a series of
UNIX
Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, ...
computer workstation
A workstation is a special computer designed for technical or scientific applications. Intended primarily to be used by a single user, they are commonly connected to a local area network and run multi-user operating systems. The term ''workst ...
s and
servers produced by
Sun Microsystems
Sun Microsystems, Inc. (Sun for short) was an American technology company that sold computers, computer components, software, and information technology services and created the Java programming language, the Solaris operating system, ZFS, t ...
, launched on September 9, 1985. The Sun-3 series are
VMEbus
VMEbus (Versa Module Europa or Versa Module Eurocard bus) is a computer bus standard, originally developed for the Motorola 68000 line of CPUs, but later widely used for many applications and standardized by the IEC as ANSI/IEEE 1014-1987. ...
-based systems similar to some of the earlier
Sun-2 series, but using the
Motorola 68020 microprocessor
A microprocessor is a computer processor where the data processing logic and control is included on a single integrated circuit, or a small number of integrated circuits. The microprocessor contains the arithmetic, logic, and control circ ...
, in combination with the
Motorola 68881
The Motorola 68881 and Motorola 68882 are floating-point units (FPUs) used in some computer systems in conjunction with Motorola's 32-bit 68020 or 68030 microprocessors. These coprocessors are external chips, designed before floating point math bec ...
floating-point
In computing, floating-point arithmetic (FP) is arithmetic that represents real numbers approximately, using an integer with a fixed precision, called the significand, scaled by an integer exponent of a fixed base. For example, 12.345 can ...
co-processor (optional on the Sun 3/50) and a proprietary Sun
MMU. Sun-3 systems were supported in
SunOS
SunOS is a Unix-branded operating system developed by Sun Microsystems for their workstation and server computer systems. The ''SunOS'' name is usually only used to refer to versions 1.0 to 4.1.4, which were based on BSD, while versions 5.0 an ...
versions 3.0 to 4.1.1_U1 and also have current support in
NetBSD
NetBSD is a free and open-source Unix operating system based on the Berkeley Software Distribution (BSD). It was the first open-source BSD descendant officially released after 386BSD was forked. It continues to be actively developed and is ava ...
and
Linux
Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, whi ...
.
Sun-3 models
Models are listed in approximately chronological order.
:
(Max. RAM sizes may be greater when third-party memory boards are used.)
Image:Sun3_CPU.jpg, Original Sun-3 CPU board
Image:Sun3_4MbMemory_Sun3_Scsi.jpg, Original Sun-3 4 MB memory board with Sun-3 SCSI
Small Computer System Interface (SCSI, ) is a set of standards for physically connecting and transferring data between computers and peripheral devices. The SCSI standards define commands, protocols, electrical, optical and logical interface ...
daughter board
Image:Sun3_50CPUwHelios4Mb.jpg, Sun 3/50 CPU board with Helios 4 MB memory expansion
Keyboard
The Sun Type 3 keyboard is split into three blocks:
* special keys
* main block
* numeric pad
It shipped with Sun-3 systems.
Sun-3x
In 1989, coincident with the launch of the
SPARCstation 1
The SPARCstation 1 (Sun 4/60, code-named ''Campus'') is the first of the SPARCstation series of SPARC-based computer workstations sold by Sun Microsystems. The design originated in 1987 by a Sun spin-off company, Unisun, which was soon re-acquire ...
, Sun launched three new Sun-3 models, the 3/80, 3/470 and 3/480. Unlike previous Sun-3s, these use a
Motorola 68030 processor, 68882 floating-point unit, and the 68030's integral MMU. This 68030-based architecture is called Sun-3x.
:
Sun 3/260s upgraded with Sun 3400 CPU boards are known as Sun 3/460s.
See also
*
Sun-1
*
Sun-2
*
Sun386i
The Sun386i (codenamed ''Roadrunner'') is a discontinued hybrid UNIX workstation/PC compatible computer system produced by Sun Microsystems, launched in 1988. It is based on the Intel 80386 microprocessor but shares many features with the cont ...
*
Sun-4
*
SPARCstation
The SPARCstation, SPARCserver and SPARCcenter product lines are a series of SPARC-based computer workstations and servers in desktop, desk side (pedestal) and rack-based form factor configurations, that were developed and sold by Sun Microsyst ...
References
External links
Sun Microsystems
Obsolyte!—Fan site for old Unix Workstations, including Sun machines
{{Sun Microsystems
68k-based computers
Computer-related introductions in 1985
Sun servers
Sun workstations
32-bit computers