I remember having a 1401 simulator emulator (or was it the other way) for the 360 that executed autocoder programs emulating a 7090 series...
It was SOOOOoooo slow :-)
jack
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf Of John Lee
Sent: Tuesday, April 08, 2014 3:22 PM
To: [log in to unmask]
Subject: Re: [HP3000-L] IBM 360 - 50 Years Ago
And it will be interesting to see if they make a comeback.
John Lee
At 01:51 PM 04/08/2014, Johnson, Tracy wrote:
> From Slashot's firehose:
>
>Hugh Pickens DOT Com (2995471) writes
>
>"Those of us of a certain age remember well the breakthrough that the
>IBM 360 series mainframes represented when it was unveiled fifty years
>ago on 7 April 1964. Now Mark Ward reports at BBC that the first System
>360 mainframe marked a break with all general purpose computers that
>came before because it was possible to upgrade the processors but still
>keep using the same code and peripherals from earlier models. "Before
>System 360 arrived, businesses bought a computer, wrote programs for it
>and then when it got too old or slow they threw it away and started
>again from scratch," says Barry Heptonstall. IBM bet the company when
>they developed the 360 series.
>At the time IBM had a huge array of conflicting and incompatible lines
>of computers, and this was the case with the computer industry in
>general at the time, it was largely a custom or small scale design and
>production industry, but IBM was such a large company and the problems
>of this was getting obvious: When upgrading from one of the smaller
>series of IBM computers to a larger one, the effort in doing that
>transition was so big so you might as well go for a competing product
>from the "BUNCH" (Burroughs, Univac, NCR, CDC and Honeywell). Fred
>Brooks managed the development of IBM's System/360 family of computers
>and the OS/360 software support package and based his software classic
>"The Mythical Man-Month" on his observation that "adding manpower to a
>late software project makes it later." The S/360 was also the first
>computer to use microcode to implement many of its machine
>instructions, as opposed to having all of its machine instructions
>hard-wired into its circuitry. Despite their age, mainframes are still
>in wide use today and are behind many of the big information systems
>that keep the modern world humming handling such things as airline
>reservations, cash machine withdrawals and credit card payments. "We
>don't see mainframes as legacy technology," says Charlie Ewen. "They
>are resilient, robust and are very cost-effective for some of the work
>we do.""
>
>Talk to the link:
>
>http://hardware.slashdot.org/story/14/04/07/065213/fifty-years-ago-ibm-
>bet-the-company-on-the-360-series-mainframe
>
>
>Tracy Johnson
>Business Analyst
>Measurement Specialties, Inc.
>Office (757) 766-4318
>Cell (757) 755-6470
>[log in to unmask]
>
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