From: Shmuel Metz on
In <4c0d0278$0$56572$c30e37c6(a)exi-reader.telstra.net>, on 06/08/2010
at 12:30 AM, "robin" <robin51(a)dodo.com.au> said:

>That was done by hand for many early machines that relied on mercury
>delay line (or nickel) memories.

I don't know about the UK, but in the USA pretty much everybody
abandoned the Mercury delay line after the UNIVAC I. It's true that
the PB-250 used an acoustic delay line, but that used glass rather
than Mercury.

--
Shmuel (Seymour J.) Metz, SysProg and JOAT <http://patriot.net/~shmuel>

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From: Shmuel Metz on
In <hujqhj$ng9$1(a)speranza.aioe.org>, on 06/07/2010
at 10:06 PM, glen herrmannsfeldt <gah(a)ugcs.caltech.edu> said:

>The IBM 2301 and 2303 were around for the S/370 days, but the popular
>swap device for S/370 was the 2305 fixed head disk.

Popular? Even a model 2[1] was fairly expensive, and it only had 10%
of the capacity of a 3330-1 moving-head disk drive.

[1] The 2305-2 had twice the capacity and half the speed of the
2305-1.

--
Shmuel (Seymour J.) Metz, SysProg and JOAT <http://patriot.net/~shmuel>

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From: Shmuel Metz on
In <nospam-0512E7.10224407062010(a)earthlink.us.supernews.com>, on
06/07/2010
at 10:22 AM, Arthur Evans Jr <nospam(a)someISP.net> said:

>SOAP was an assembler for the IBM 650, a drum machine that had 200

ITYM 2,000 or 4,000, depending on model.

--
Shmuel (Seymour J.) Metz, SysProg and JOAT <http://patriot.net/~shmuel>

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From: Shmuel Metz on


In <op.vdw0e7cqz25lew(a)macpro-eth1.krischik.com>, on 06/07/2010
at 07:34 AM, "Martin Krischik" <krischik(a)users.sourceforge.net>
said:

>Maybe the talk about one of those advanced *macro* assemblers ;-).

Even non-macro assemblers take things out of the programmers hands.
IMHO the loss of control is noise compared to the improvement in
productivity.

--
Shmuel (Seymour J.) Metz, SysProg and JOAT <http://patriot.net/~shmuel>

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From: Shmuel Metz on


In <4c0bbadb$0$34203$c30e37c6(a)exi-reader.telstra.net>, on 06/07/2010
at 01:12 AM, David Frank <robin51(a)dodo.com.au> said:

>What don't you understand about the publication,
>"Automatic Digital Computation"?

Its relevance.

>With that information, most people can find the publication and read
>it.

So can you. The last time that I went through that exercise, it turned
out that you had lied.

--
Shmuel (Seymour J.) Metz, SysProg and JOAT <http://patriot.net/~shmuel>

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