Personal Computer Museum in Takoma Park Maryland 2006

Sun-3 is a series of

UNIX Unix (, ; trademarked as UNIX) is a family of multitasking, multi-user 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, a ...

computer workstations and servers produced by

Sun Microsystems Sun Microsystems, Inc., often known as Sun for short, was an American technology company that existed from 1982 to 2010 which developed and sold computers, computer components, software, and information technology services. Sun contributed sig ...

, launched on September 9, 1985. The Sun-3 series are VMEbus-based systems similar to some of the earlier Sun-2 series, but using the Motorola 68020

microprocessor A microprocessor is a computer processor (computing), processor for which the data processing logic and control is included on a single integrated circuit (IC), or a small number of ICs. The microprocessor contains the arithmetic, logic, a ...

, in combination with the Motorola 68881

floating-point In computing, floating-point arithmetic (FP) is arithmetic on subsets of real numbers formed by a ''significand'' (a Sign (mathematics), signed sequence of a fixed number of digits in some Radix, base) multiplied by an integer power of that ba ...

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 from 1982 until the mid-1990s. The ''SunOS'' name is usually only used to refer to versions 1.0 to 4.1.4, which were based ...

versions 3.0 to 4.1.1_U1 and also have current support in

NetBSD NetBSD is a free and open-source Unix-like operating system based on the Berkeley Software Distribution (BSD). It was the first open-source BSD descendant officially released after 386BSD was fork (software development), forked. It continues to ...

and

Linux Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ...

. It used to be supported by

OpenBSD OpenBSD is a security-focused operating system, security-focused, free software, Unix-like operating system based on the Berkeley Software Distribution (BSD). Theo de Raadt created OpenBSD in 1995 by fork (software development), forking NetBSD ...

but the port was discontinued after the 2.9 release.

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, best known for its use with storage devices such as hard disk drives. SCSI was introduced ...

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, 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.

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

Sun-3 models

Keyboard

Sun-3x

See also

References

External links