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=-3.6 required=5.0 tests=MAILING_LIST_MULTI, NICE_REPLY_A autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 23315 invoked from network); 23 Nov 2021 19:35:29 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 23 Nov 2021 19:35:29 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 8FB379C773; Wed, 24 Nov 2021 05:35:24 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 6CA2A93D29; Wed, 24 Nov 2021 05:32:19 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 74B1F93D29; Wed, 24 Nov 2021 05:32:16 +1000 (AEST) X-Greylist: delayed 1324 seconds by postgrey-1.36 at minnie.tuhs.org; Wed, 24 Nov 2021 05:32:15 AEST Received: from mslow1.mail.gandi.net (mslow1.mail.gandi.net [217.70.178.240]) by minnie.tuhs.org (Postfix) with ESMTPS id C7FFF93D1B for ; Wed, 24 Nov 2021 05:32:15 +1000 (AEST) Received: from relay5-d.mail.gandi.net (unknown [217.70.183.197]) by mslow1.mail.gandi.net (Postfix) with ESMTP id 6C3D7C2D82 for ; Tue, 23 Nov 2021 19:04:41 +0000 (UTC) Received: (Authenticated sender: aek@bitsavers.org) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id C5DE81C0003 for ; Tue, 23 Nov 2021 19:04:38 +0000 (UTC) To: tuhs@minnie.tuhs.org References: From: Al Kossow Message-ID: Date: Tue, 23 Nov 2021 11:04:36 -0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit 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: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On 11/23/21 10:54 AM, Ron Natalie wrote: >> I have a vague recollection that PL/X was a PL/I variant used for internal development on VM/CMS. PL/S