Path: news.eternal-september.org!eternal-september.org!feeder3.eternal-september.org!news.iecc.com!.POSTED.news.iecc.com!not-for-mail
From: John Levine <johnl@taugh.com>
Newsgroups: comp.arch
Subject: Re: mainframe vs mini, old and slow base and bounds, Why I've Dropped In
Date: Mon, 23 Jun 2025 23:16:13 -0000 (UTC)
Organization: Taughannock Networks
Message-ID: <103cn7t$28np$1@gal.iecc.com>
References: <0c857b8347f07f3a0ca61c403d0a8711@www.novabbs.com> <3820c79f32d4c2368c3d85f1d5141752@www.novabbs.com> <8zc6Q.1100424$%uk3.140162@fx10.iad> <4c8c711f884b1e11ce83b7b13a63d1f5@www.novabbs.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Injection-Date: Mon, 23 Jun 2025 23:16:13 -0000 (UTC)
Injection-Info: gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970";
	logging-data="74489"; mail-complaints-to="abuse@iecc.com"
In-Reply-To: <0c857b8347f07f3a0ca61c403d0a8711@www.novabbs.com> <3820c79f32d4c2368c3d85f1d5141752@www.novabbs.com> <8zc6Q.1100424$%uk3.140162@fx10.iad> <4c8c711f884b1e11ce83b7b13a63d1f5@www.novabbs.com>
Cleverness: some
X-Newsreader: trn 4.0-test77 (Sep 1, 2010)
Originator: johnl@iecc.com (John Levine)

According to quadibloc  <quadibloc@gmail.com>:
>On the other hand, the 4004 wasn't exotic. And since the Intel 8008
>dates from 1972, I was wrong to think that 8-bit microprocessors were
>nonexistent in 1973, so it was not correct for me to claim that it was
>impossible for the IBM 370/115 to have used some sort of microprocessor
>as its basis - even if I still would tend to suspect that it was
>unlikely.

In that era IBM made their own chips, so there's no way they'd have used
an Intel microprocessor.

The ROMP project started in 1977.  I'm not aware of any IBM micros before
that.  They called the 5100's PALM a microprocessor but that was because
it ran microcode.  It was a dozen gate arrays, not a single chip.

-- 
Regards,
John Levine, johnl@taugh.com, Primary Perpetrator of "The Internet for Dummies",
Please consider the environment before reading this e-mail. https://jl.ly