File:Museo de Informática Histórica (MIH) - UNIZAR - Sun Sparcstation 330 motherboard - smart fix.jpg
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[edit]DescriptionMuseo de Informática Histórica (MIH) - UNIZAR - Sun Sparcstation 330 motherboard - smart fix.jpg |
English: Sun Microsystems introduced its Sun Sparcstation 330 with the SPARC architecture in 1989. SPARC was one of the first commercial materializations of a reduced instructions set architecture coming from the RISC project, led by Prof. David Patterson at the UC Berkeley, as MIPS was being led by Prof. John L. Henessy at the Standford University. It was powered by a Cypress CY7C601 processor at 25 MHz along with a Texas Instruments 8847 FPU, and boasted a 72 MB RAM. My Department (Computing and Systems Engineering, DIIS is its current name) bought one of these machines in 1990, which currently enjoys a well-deserved retirement in our Computer Museum, with its motherboard displayed inside a showcase. I pass next to it a dozen times a day, and recently realized that those six crossed wires with a yellow dot -likely a decoupling capacitor, thx [1]- can't be any other thing but a late fix. Someone didn't sleep /eat /... for quite a few days or weeks, who knows, until fixing a (million dollars?) post-production bug. I find this fix really beautiful, as it completely breaks up the dullness of the circuitry.
The two outstanding big chips are the first-level cache memory controller (left), and the (off-chip) L1 cache itself (above). |
Date | |
Source | Own work |
Author | Jose Luis Briz Velasco |
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current | 11:08, 6 April 2017 | 7,360 × 4,912 (29.2 MB) | Jlbriz (talk | contribs) | Extended info | |
22:29, 1 April 2017 | 7,360 × 4,912 (29.19 MB) | Jlbriz (talk | contribs) | User created page with UploadWizard |
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Camera manufacturer | NIKON CORPORATION |
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Author | briz@unizar.es |
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ISO speed rating | 200 |
Date and time of data generation | 13:01, 1 April 2017 |
Lens focal length | 105 mm |
Short title |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop Lightroom 5.7.1 (Windows) |
File change date and time | 13:06, 6 April 2017 |
Exposure Program | Manual |
Exif version | 2.3 |
Date and time of digitizing | 13:01, 1 April 2017 |
APEX shutter speed | 6.965784 |
APEX aperture | 6.918863 |
APEX exposure bias | 0 |
Maximum land aperture | 3.4 APEX (f/3.25) |
Metering mode | Pattern |
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Flash | Flash fired, strobe return light not detected, compulsory flash firing |
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File source | Digital still camera |
Scene type | A directly photographed image |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 105 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Lens used | 105.0 mm f/2.8 |
Serial number of camera | 8017571 |
Date metadata was last modified | 15:06, 6 April 2017 |
Rating (out of 5) | 5 |
Unique ID of original document | 5D8CDC016B8C1C13348B84BD43006BF4 |
Keywords |
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IIM version | 4 |