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#OtherGeographies

Amin Girasolfluidlogic@oldbytes.space
2024-02-25

In 1972, #core #memory was manufactured in #Dublin by the Irish subsidiary of US-headquartered Dataproducts, trading as "Data Products/Core Memories Ltd."

They made what they claimed was "...the world’s largest core stack, 131K x 80". Judging by the info in the caption, the latter number is the number of bits per word, so in eight-bit bytes, that's 1,310 kilobytes.

I can't imagine that business survived more than a couple more years. Soon the semiconductor manufacturers had set up shop in Ireland.

#vintage #computer #hardware #history #CoreMemory #OtherGeographies #Ireland

en.m.wikipedia.org/wiki/Datapr

A photo of a page from a 1972 electronics and automation trade exhibition, held in London. A black and white photo of a 4K x 18 bit mini planar 18 mil core is shown. The accompanying text reads: DATA PRODUCTS/ CORE MEMORIES LTD. Greencastle Road Coolock Dublin 5 Ireland Telephone Dublin 311666 Telex 5183 This company specializes in the field of ferrite core memories. The factory covers 43,000 sq. ft. and is convenient to Dublin International Airport. The company is constantly striving to exceed to-day’s accepted standards for operational characteristics and mechanical strength. Standard arrays and stacks are available for coincident operation for 30 mil., 22 mil and 18 mil and 14 mil cores. CORES Data Products ferrite cores made by the roll/cut process have greater uniformity of electrical and mechanical characteristics than cores made by the conventional powder press method. The result is precise control of core geometry and density. This in turn results in tighter distribution of electrical properties and a more consistent yield. The advantages of this process are even more amplified in making smaller and faster cores. Production cores are available in a wide range of sizes — 14-mil to 30-mil — and speeds — 110 to 395 nanoseconds. STACKS Data Products is a leader in the design and production of core stacks. New manufacturing techniques developed by Data Products produce more reliable core stacks with consistent electrical characteristics. Core-bonding methods...The front cover of the brochure, showing a very trippy 1970s interpretation of elements from a circuit diagram. The brochure design is by Cor Klaasen.

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