From owner-freebsd-questions@freebsd.org Sun Feb 9 08:41:21 2020 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 1F49923176B for ; Sun, 9 Feb 2020 08:41:21 +0000 (UTC) (envelope-from 4250.10.freebsd-questions=freebsd.org@email-od.com) Received: from s1-b0c6.socketlabs.email-od.com (s1-b0c6.socketlabs.email-od.com [142.0.176.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 48FjDw1fmnz3M5W for ; Sun, 9 Feb 2020 08:41:19 +0000 (UTC) (envelope-from 4250.10.freebsd-questions=freebsd.org@email-od.com) DKIM-Signature: v=1; a=rsa-sha256; d=email-od.com;i=@email-od.com;s=dkim; c=relaxed/relaxed; q=dns/txt; t=1581237680; x=1583829680; h=content-transfer-encoding:content-type:mime-version:references:in-reply-to:message-id:subject:to:from:date:x-thread-info; bh=5LaWb4oUaW2xJbbl22uzGcOlMyJsXzzkmkVtGQ0cMJc=; b=ssftAjVKALdz/dwDe0ZPQbqUH2de3oQI0UOc+h2kfllpjzqyvPiJkYcCN5tLyadQ9QiOkY4s3yJJRjVxE+kzOEDJOlYZRZ2yKYW5EHQvgmggkO+8B8Ho6JfR+P0QdWy2xg1UDQGc0d0OZuAfJx9nWNexl/XPVC/tKGy01Gj167A= X-Thread-Info: NDI1MC4xMi42ZTAwMDAwMmE0Njk4Yy5mcmVlYnNkLXF1ZXN0aW9ucz1mcmVlYnNkLm9yZw== Received: from r4.h.in.socketlabs.com (s1-b40f.socketlabs.email-od.com [142.0.180.15]) by mxsg2.email-od.com with ESMTP(version=Tls12 cipher=Aes256 bits=256); Sun, 9 Feb 2020 03:41:14 -0500 Received: from smtp.lan.sohara.org (EMTPY [185.202.17.215]) by r4.h.in.socketlabs.com with ESMTP(version=Tls12 cipher=Aes256 bits=256); Sun, 9 Feb 2020 03:41:13 -0500 Received: from [192.168.63.1] (helo=steve.lan.sohara.org) by smtp.lan.sohara.org with smtp (Exim 4.92.3 (FreeBSD)) (envelope-from ) id 1j0i9Q-0006EA-0r for freebsd-questions@freebsd.org; Sun, 09 Feb 2020 08:41:12 +0000 Date: Sun, 9 Feb 2020 08:41:11 +0000 From: Steve O'Hara-Smith To: freebsd-questions@freebsd.org Subject: Re: Re updating BIOS Message-Id: <20200209084111.8d9764a128bab47ee1c19a86@sohara.org> In-Reply-To: <202002090809.01989xgi025440@sdf.org> References: <202002090809.01989xgi025440@sdf.org> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.32; amd64-portbld-freebsd12.0) X-Clacks-Overhead: "GNU Terry Pratchett" Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 48FjDw1fmnz3M5W X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=pass header.d=email-od.com header.s=dkim header.b=ssftAjVK; dmarc=none; spf=pass (mx1.freebsd.org: domain of 4250.10.freebsd-questions=freebsd.org@email-od.com designates 142.0.176.198 as permitted sender) smtp.mailfrom=4250.10.freebsd-questions=freebsd.org@email-od.com X-Spamd-Result: default: False [-1.87 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.98)[-0.982,0]; R_DKIM_ALLOW(-0.20)[email-od.com:s=dkim]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:142.0.176.0/20]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; DMARC_NA(0.00)[sohara.org]; FORGED_SENDER_VERP_SRS(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; RCVD_COUNT_THREE(0.00)[4]; IP_SCORE(0.11)[ip: (-0.32), ipnet: 142.0.176.0/22(0.63), asn: 7381(0.30), country: US(-0.05)]; MV_CASE(0.50)[]; DKIM_TRACE(0.00)[email-od.com:+]; RCVD_IN_DNSWL_NONE(0.00)[198.176.0.142.list.dnswl.org : 127.0.15.0]; ENVFROM_VERP(0.00)[]; FORGED_SENDER(0.00)[steve@sohara.org,4250.10.freebsd-questions=freebsd.org@email-od.com]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:7381, ipnet:142.0.176.0/22, country:US]; FROM_NEQ_ENVFROM(0.00)[steve@sohara.org,4250.10.freebsd-questions=freebsd.org@email-od.com]; MID_RHS_MATCH_FROM(0.00)[] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 09 Feb 2020 08:41:21 -0000 On Sun, 09 Feb 2020 02:09:59 -0600 Scott Bennett wrote: > The first part of the above, mispunctuated pair of sentences is > correct, but the latter part is not. FreeDOS, like PC-DOS and MSDOS > before it, is/was not an operating system, but rather a more primitive > creature known as a monitor system. The DOS part of those names is an abbreviation of 'Disc Operating System' - clearly at the time they were considered operating systems even though they started life as near clones of CP/M (Control Program/Monitor). IBM 360 mainframes didn't have virtual memory, processes or any of the protections you mentioned, it didn't even have anything that would be recognised as a filesystem today (it had record oriented datasets) - but OS360 was definitely considered an operating system. [MS/PC/DR/Free]DOS was a lot more like a mainframe batch operating system than a multi-user multi-tasking operating system such as Multics or unix, but hijacking the term operating system to mean only the latterm, and that only with hardware supported isolation mechanisms is revisionist. I recall working on a unix(ish) system in the late 1980s that didn't have hardware memory mapping or protection, or even fsck which made recovering from (the frequent) crashes rather tedious (icheck, ncheck ...). -- Steve O'Hara-Smith