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[173.48.168.163]) by smtp.gmail.com with ESMTPSA id v29-v6sm7808371qkv.28.2018.06.15.20.06.52 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 15 Jun 2018 20:06:52 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (1.0) From: Clem cole X-Mailer: iPhone Mail (15F79) In-Reply-To: <20180616010804.GA28267@eureka.lemis.com> Date: Fri, 15 Jun 2018 23:06:50 -0400 Content-Transfer-Encoding: quoted-printable Message-Id: <6D29F004-730D-46B6-A5D5-6220CF41A53D@ccc.com> References: <20180616010804.GA28267@eureka.lemis.com> To: Greg 'groggy' Lehey Subject: Re: [TUHS] core X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: The Eunuchs Hysterical Society Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Greg- Sorry if my words read and came to be interpreted to imply 1955 was t= he date of the invention. I only wanted clarify that Wang had the idea of m= agnetic (core) memory before Forrester. 1955 is the date of patent grant as= you mentioned. My primary point was to be careful about giving all the cre= dit to Forrester. It took both as I understand the history. Again I was no= t part of that fight =F0=9F=98=89 It seemed the courts have said what I mentioned - it was Wang=E2=80=99s orig= inal idea and I just wanted the history stayed more clearly. That said, ob= viously Forrester improved on it (made it practical). And IBM needed licen= ses for both btw build their products. =20 FWIW: I=E2=80=99ve been on a couple corporate patent committees. I called hi= m on the comment because I knew that we use core history sometimes as an exa= mple when we try to teach young inventors how develop a proper invention dis= closure (and how I was taught about some of these issues). What Forrester d= id I have seen used as an example of an improvement and differentiation from= a previous idea. That said, Wang had the fundamental patent and Forrester n= eeded to rely on Wang=E2=80=99s idea to =E2=80=9Creduce to practice=E2=80=9D= his own. As I said, IBM needed to license both in the end to make a produc= t. =20 What we try to teach is how something is new (novel in patent-speak) and to m= ake sure they disclose what there ideas are built upon. And as importantly= , are you truly novel and if you are - can you build on that previous idea w= ithout a license.=20 This is actually pretty important to get right and is not just an academic e= xercise. For instance, a few years ago I was granted a fundamental computer= synchronization patent for use in building supercomputers out of smaller co= mputers (ie clusters). When we wrote the stuff for disclosure we had to sho= w how what was the same, what was built upon, and what made it new/different= . Computer synchronization is an old idea but what we did was quite new (an= d frankly would not have been considered in the 60s as those designers did h= ave some of issues in scale we have today). But because we were able to show= both the base and how it was novel, the application went right through in b= oth the USA and Internationally.=20 So back to my point, Forrester came up with the idea and practical scheme to= use Wang=E2=80=99s concept of the magnetic memory in an array, which as I u= nderstand it, was what made Wang=E2=80=99s idea practical. Just as my schem= e did not invent synchronization, but tradition 1960 style schemes are impra= ctical with today=E2=80=99s technology.=20 Sent from my PDP-7 Running UNIX V0 expect things to be almost but not quite.= =20 > On Jun 15, 2018, at 9:08 PM, Greg 'groggy' Lehey wrote: >=20 >> On Friday, 15 June 2018 at 10:21:44 -0400, Clem Cole wrote: >> On Fri, Jun 15, 2018 at 7:19 AM, A. P. Garcia >> wrote: >>=20 >>> jay forrester first described an invention called core memory in a lab >>> notebook 69 years ago today. >>>=20 >> ???Be careful -- Forrester named it and put it into an array and build a >> random access memory with it, but An Wang invented and patented basic >> technology we now call 'core' in 1955 2,708,722 >> (calling it `dynamic >> memory')???. >=20 > Tha patent may date from 1955, but by that time it was already in use. > Whirlwind I used it in 1949, and the IBM 704 (1954) used it for main > memory. There are some interesting photos at > https://en.wikipedia.org/wiki/Magnetic-core_memory. >=20 > Greg > -- > Sent from my desktop computer. > Finger grog@lemis.com for PGP public key. > See complete headers for address and phone numbers. > This message is digitally signed. If your Microsoft mail program > reports problems, please read http://lemis.com/broken-MUA