Posts Tagged Core Memory

Cray-1: The Super Computer

Posted by on Sunday, 19 July, 2009

Seymour Cray’s big super computer was crazy. It’s signals between components had to be timed by trimming long cables up to 1/16th of an inch at a time by hand and was basically interwoven with a giant refrigeration system.

Name: Cray-1
Year created: 1976
Creator: Cray Research, Inc.
Cost: $5 million to $10 million
Memory: 4MW semiconductor
Speed: 160 MFLOPS

Building supercomputers was a dream, an aspiration, and a life’s pursuit for Seymour Cray, and his work on the computers that bore his name was the culmination of work he had done for the U.S. Navy, for CDC [Control Data Corporation], and finally for his namesake company. When Cray left CDC in 1972, after his work on the 6600, 7600, and minimally the 8600, he took much of the supercomputer fire with him.

While Cray’s departure from CDC wasn’t overly dramatic, his impact on supercomputing was. Cray artfully designed computers so that each part worked to efficiently speed up the whole, and he usually didn’t rely on the newest experimental components, preferring instead to tweak existing technologies for maximum performance. For instance, the Cray-1 was the first Cray machine to use integrated circuits, despite their having been on the market for about a decade. At 160 MFLOPS, the Cray-1 was the fastest machine at the time, and despite what seemed like only a niche market for expensive superfast machines, Cray Research sold more than a hundred of them.

Form and size were always concerns for Cray, as far back as his days developing the CDC 160, which was built into an ordinary desk. There was also a big concern with the heat that could be generated by so many parts being packaged so tightly together, so Cray’s designs typically involved unique cooling solutions, whether it be Freon on the Cray-1, or Fluorinert, in which Cray-2′s circuit boards were immersed.

Core Memory is a photographic exploration of the Computer History Museum’s collection, highlighting some of the most interesting pieces in the history of computers. These excerpts were used with permission of the publisher. Special thanks to Fiona!

The photos in the book were taken by Mark Richards, whose work has appeared in The New York Times Sunday Magazine, Fortune, Smithsonian, Life and BusinessWeek. The eye-candy is accompanied by descriptions of each artifact to cover the characteristics and background of each object, written by John Alderman who has covered the culture of high-tech lifestyle since 1993, notably for Mondo 2000, HotWired and Wired News. A foreword is provided by the Computer History Museum’s Senior Curator Dag Spicer.

Or go see the real things at the Computer History Museum in Mountain View, Calif.
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Gizmodo ’79 is a week-long celebration of gadgets and geekdom 30 years ago, as the analog age gave way to the digital, and most of our favorite toys were just being born.


Tandy TRS-80: The Budget Computer

Posted by on Saturday, 18 July, 2009

Even back then, there were computers for people who couldn’t afford the more expensive stuff. Take this Tandy, which costs little more than a upgraded Netbook today. From Core Memory, photographed by Mark Richards and written by John Alderman.

TRS-80 Model 1 (and Model 100)
Year created: 1977
Creator: Tandy Corporation
Cost: $399 ($599 with monitor)
Memory: 4KB ROM
Processor: Z-80

Despite Apple’s marketing message of personal empowerment and freedom, they weren’t giving away those Apple IIs. A computer—especially one with a price tag of $1,300 or more—was beyond the comfort range of most people in the country, and few parents considered such a thing necessary to child development. As far as business went, it would be a while before a “killer app”—a must-have application—would be developed for machines available at an affordable price.

The TRS-80 was in part an antidote to this. If parents were convinced of a computer’s necessity, but their pocketbooks couldn’t support an Apple, then $399, or even $99, was worth considering. For a business that wanted to experiment with computing, that was a reasonable asking price.

The system was developed by the Tandy buyer Don French and Homebrew Computer Club leader Steve Leininger, who was quoted by Creative Computing magazine at the time as saying he had rejected a company plan to sell a computer kit because “too many people can’t solder.” This was an interesting admission from the company that owned Radio Shack, famous at that time for selling electronics parts to hobbyists. Nevertheless, the TRS-80 was actually rather sophisticated. Four kilobytes of RAM were matched with 4K of ROM holding Radio Shack’s proprietary version of BASIC. The silver-and-black color scheme—even more than a beige box—evoked a kind of futuristic proletarian chic. Like other, similar systems, the TRS-80 used a cassette tape player as a storage device.

The early portable TRS-80 Model 100, designed by Kyocera and released in 1983, was evidence that, by that time, beige was winning the color war. Rugged and able to start up immediately, the Model 100 as utilitarian and much-beloved by traveling reporters.

Core Memory is a photographic exploration of the Computer History Museum’s collection, highlighting some of the most interesting pieces in the history of computers. These excerpts were used with permission of the publisher. Special thanks to Fiona!

The above photographs were taken by Mark Richards, whose work has appeared in The New York Times Sunday Magazine, Fortune, Smithsonian, Life and BusinessWeek. The eye-candy is accompanied by descriptions of each artifact to cover the characteristics and background of each object, written by John Alderman who has covered the culture of high-tech lifestyle since 1993, notably for Mondo 2000, HotWired and Wired News. A foreword is provided by the Computer History Museum’s Senior Curator Dag Spicer.

Or go see the real things at the Computer History Museum in Mountain View, Calif.

Gizmodo ’79 is a week-long celebration of gadgets and geekdom 30 years ago, as the analog age gave way to the digital, and most of our favorite toys were just being born.


Apple II: The World Catches On [Computers]

Posted by on Wednesday, 15 July, 2009

Apple I: The Start of Something Huge [Computers]

Posted by on Tuesday, 14 July, 2009