The SPARCstation 2, code-named “Calvin,” was introduced in November 1990 and quickly became one of the most popular Unix workstations of its era. It represented a significant performance leap over the original SPARCstation 1, offering roughly three times the computational power while maintaining the same compact “pizza box” form factor.
This particular machine has been upgraded with a Weitek PowerUp processor running at 80 MHz, significantly boosting its performance beyond the stock 40 MHz CY7C601 processor. The Weitek upgrade was a popular third-party enhancement that extended the useful life of many SPARCstation 2 systems.
History
The SPARCstation 2 arrived at a pivotal moment in computing history. The early 1990s saw Unix workstations become essential tools in engineering, scientific research, and software development. Sun Microsystems dominated this market, and the SPARCstation 2 exemplified why.
With its 40 MHz processor (upgradeable to 80 MHz with third-party solutions), support for up to 64 MB of RAM, and three SBus expansion slots, the SPARCstation 2 offered an exceptional balance of performance, expandability, and value. It could run SunOS 4.x and later Solaris 2.x, providing a stable Unix environment for demanding applications.
The machine was widely used in universities, research labs, and corporations worldwide. Many engineers who worked in the 1990s have fond memories of these systems, which were often their first exposure to Unix computing.
Specifications
| Attribute | Value |
|---|---|
| Release Date | November 1990 |
| Model | 4/75 / Code-named “Calvin” / Serial# 12648243 |
| CPU | Weitek PowerUp @ 80 MHz |
| Architecture | Sun4c / OBP 2.9 |
| RAM | 64Mb + 64Mb above board SBUS RAM |
| OS | SunOS 4.1.4 |
| Graphics | SBus: CG6 TGX+ Single Buffer (2M mappable) 1280x1024@76 |
| Environment | OpenWindows 3.0_414 / X11R5 / X11R6 / Motif 1.2 |
| Disk Image | 2.1 GB SCSI / ZuluSCSI RP2040 |
Useful Documents
- Sun Field Service Manual (PDF) - Sun’s field service manual covering SPARCstation 2 hardware. Includes monitor information and troubleshooting procedures.
Disk Image
A bootable SunOS 4.1.4 disk image is available for this system, configured for use with ZuluSCSI SCSI emulators.
Download: HD3_SunOS_4.1.4_SS2_PROTO_512.img.gz
SHA1: 84a7735b39f69c75d440f85363a4e5d00fcd3f71
For setup instructions, see the ZuluSCSI Disk Images.
Gallery
