From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 24878 invoked from network); 23 Nov 2021 19:47:58 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 23 Nov 2021 19:47:58 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 655DA9454A; Wed, 24 Nov 2021 05:47:55 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 014E293D29; Wed, 24 Nov 2021 05:45:55 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=serissa.com header.i=@serissa.com header.b="Ib4XGWc9"; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=messagingengine.com header.i=@messagingengine.com header.b="LUnzzgC3"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 36DF793D29; Wed, 24 Nov 2021 05:45:54 +1000 (AEST) X-Greylist: delayed 376 seconds by postgrey-1.36 at minnie.tuhs.org; Wed, 24 Nov 2021 05:45:53 AEST Received: from wout3-smtp.messagingengine.com (wout3-smtp.messagingengine.com [64.147.123.19]) by minnie.tuhs.org (Postfix) with ESMTPS id 6F4AE93D1B for ; Wed, 24 Nov 2021 05:45:53 +1000 (AEST) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.west.internal (Postfix) with ESMTP id DD2BE32022EB; Tue, 23 Nov 2021 14:39:36 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Tue, 23 Nov 2021 14:39:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=serissa.com; h= content-type:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; s=fm1; bh=2 VemgUqLx2lsO5RU8LluGPy1WqNUVk2uZ5FczMPjm84=; b=Ib4XGWc9BEosdmPWN BdiM1QzMSMtlVCsBK8fNE3lDJ37jbdmSGZhnbWX6wDGTynxfMmTNOUsA+xpydqsc WYu1RQV0kWxgjIk+zBqUd/XvbTJ+mkQibyEe64kqBtq9AGDMTM0PdxRH9TxhsLoy t/0hoQZbnyegUvjYdAZaM37RSvvhepasa4QKIde3h7r6YAO9yKfxV9fgnnFDkEah X3F35Tz+snnEQB+ub6sTlJNGTzacr1/ZzCL9M9oliSZVQ6zi8qzfUw7rlgwtLM+k YbyMjoRnYOs5dSROkX9baKmSywZ4dzexM+5WnkUa+imDM8fpC8oKAiamsZBSi5uu brHmg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; bh=2VemgUqLx2lsO5RU8LluGPy1WqNUVk2uZ5FczMPjm 84=; b=LUnzzgC3zs3yKdUy02YTKycHqtHvNgPlXjnw/kITEsro9Tcp8RooQvP89 MTy1L4fkKYMO+AFd9H8E18JaCsQi/atkgOde2FGs3A74xgPclPlRH8IVIu+ZG7+m J+ZncJXQSsxmvUdLhtuEQs63sRdPo97cqxgPfD8kmv32Eh5B1akVrBgSNlAjNdgf yoeHHhd8V1/NH47KHX1cogXhGCZN/i7BDCSxpteX+vg4uKPJh/2PYjbV2ZOXZozd AcPjYPUasKMwPVVOTyhruSn7q4pDZ0zQhRFnxBKdbjE7hQUt9CFWeCnQkkuAuQgC 84cMQYwgy7kOMMqnlcbVQNRyJcHug== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvuddrgeeigdduvdekucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpegtggfuhfgjfffgkfhfvffosehtqh hmtdhhtddvnecuhfhrohhmpefnrgifrhgvnhgtvgcuufhtvgifrghrthcuoehsthgvfigr rhhtsehsvghrihhsshgrrdgtohhmqeenucggtffrrghtthgvrhhnpeeugeekleduvdeile ekudeukedvhfdvgeehvdeutdejveegvedtffeuffejiedugfenucffohhmrghinheptghm shdrphhlnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomh epshhtvgifrghrthesshgvrhhishhsrgdrtghomh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 23 Nov 2021 14:39:36 -0500 (EST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 15.0 \(3693.20.0.1.32\)) From: Lawrence Stewart In-Reply-To: Date: Tue, 23 Nov 2021 14:39:32 -0500 Content-Transfer-Encoding: quoted-printable Message-Id: References: To: Al Kossow X-Mailer: Apple Mail (2.3693.20.0.1.32) Subject: Re: [TUHS] Book Recommendation X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tuhs@minnie.tuhs.org Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" > On 2021, Nov 23, at 2:04 PM, Al Kossow wrote: >=20 > On 11/23/21 10:54 AM, Ron Natalie wrote: >=20 >>> I have a vague recollection that PL/X was a PL/I variant used for = internal development on VM/CMS. >=20 > PL/S PL/S also led to PL.8 which was used for the first IBM Risc