Concept
Sun-4
Sun-4 is a series of Unix workstations and servers produced by Sun Microsystems, launched in 1987. The original Sun-4 series were VMEbus-based systems similar to the earlier Sun-3 series, but employing microprocessors based on Sun's own SPARC V7 RISC architecture in place of the 68k family processors of previous Sun models. Sun 4/280 was known as base system that was used for building of first RAID prototype. Models are listed in approximately chronological order. {| class="wikitable sortable" |- !Model !Codename !CPU board !CPU !CPU MHz !Max. RAM
| !Chassis |
|---|
| 4/260 |
| Sunrise |
| Sun 4200 |
| Fujitsu SF9010 IU,Weitek 1164/1165 FPU |
| 16.67 MHz |
| 128 MB |
| 12-slot VME (deskside) |
| - |
| 4/280 |
| Sunrise |
| Sun 4200 |
| Fujitsu SF9010 IU,Weitek 1164/1165 FPU |
| 16.67 MHz |
| 128 MB |
| 12-slot VME (rackmount) |
| - |
| 4/110 |
| Cobra |
| Sun 4100 |
| Fujitsu MB86900 IU,Weitek 1164/1165 FPU(optional) |
| 14.28 MHz |
| 32 MB |
| 3-slot VME (desktop/side) |
| - |
| 4/150 |
| Cobra |
| Sun 4100 |
| Fujitsu MB86900 IU,Weitek 1164/1165 FPU(optional) |
| 14.28 MHz |
| 32 MB |
| 6-slot VME (deskside) |
| - |
| 4/310 |
| Stingray |
| Sun 4300 |
| Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU |
| 25 MHz |
| 32 MB |
| 3-slot VME (desktop/side) |
| - |
| 4/330 |
| Stingray |
| Sun 4300 |
| Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU |
| 25 MHz |
| 96 MB |
| 3-slot VME w 2 memory slots (deskside) |
| - |
| 4/350 |
| Stingray |
| Sun 4300 |
| Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU |
| 25 MHz |
| 224 MB |
| 5-slot VME (desktop/side) |
| - |
| 4/360 |
| Stingray |
| Sun 4300 |
| Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU |
| 25 MHz |
| 224 MB |
| 12-slot VME (deskside) |
| - |
| 4/370 |
| Stingray |
| Sun 4300 |
| Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU |
| 25 MHz |
| 224 MB |
| 12-slot VME (deskside) |
| - |
| 4/380 |
| Stingray |
| Sun 4300 |
| Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU |
| 25 MHz |
| 224 MB |
| 12-slot VME (rackmount) |
| - |
| 4/390 |
| Stingray |
| Sun 4300 |
| Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU |
| 25 MHz |
| 224 MB |
| 16-slot VME (rackmount) |
| - |
| 4/470 |
| Sunray |
| Sun 4400 |
| Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU |
| 33 MHz |
| 768 MB |
| 16-slot VME (deskside) |
| - |
| 4/490 |
| Sunray |
| Sun 4400 |
| Cypress Semiconductor CY7C601,Texas Instruments 8847 FPU |
| 33 MHz |
| 768 MB |
| 12-slot VME (rackmount) |
| } |
| In 1989, Sun dropped the "Sun-4" name for marketing purposes in favor of the SPARCstation and SPARCserver brands for new models, although early SPARCstation/server models were also assigned Sun-4-series model numbers. |
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