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=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 26284 invoked from network); 16 Jun 2023 16:44:34 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 16 Jun 2023 16:44:34 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id E9764425AE; Sat, 17 Jun 2023 02:44:31 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuhs.org; s=dkim; t=1686933871; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-owner:list-unsubscribe:list-subscribe:list-post; bh=EiZeoX4WL+WqYvXArO5BfpAkqYxHB2Cd5crj1XsCwVg=; b=R7EF56JpHqfxVHWs6ewkLVyosVs6LOOVrggU2loPpdVf6ZcHxQ/76x9Z3ezfzJ0z9u6jMt cOE0vlipwwYJIgiak9zW23LXewMVBTABDkVSHYdf/w050AP1wjUoJhMOsyE8WuYByogmF4 e9MpG8Z7NRKJWfy2M05CRGnl1FQHzf4= Received: from mail-40141.protonmail.ch (mail-40141.protonmail.ch [185.70.40.141]) by minnie.tuhs.org (Postfix) with ESMTPS id 58C1042597 for ; Sat, 17 Jun 2023 02:44:23 +1000 (AEST) Date: Fri, 16 Jun 2023 16:44:06 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1686933861; x=1687193061; bh=EiZeoX4WL+WqYvXArO5BfpAkqYxHB2Cd5crj1XsCwVg=; h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References: Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID: Message-ID:BIMI-Selector; b=RJTZPrgQZOd3AAq+lZ9yBBq59oVmr4/iMPf83otsPoiecND1wHfuvnmgGToQfVYWk 69+w3B3ablukEmPFYOBqHMIYzNtUMGkAdl0f4n05RfYp3xudoR0PNPm+3JUNMdBldJ LZy7fxKagOr5rzab5fppKUXMxKzVGmOjLRG+AEe0hsRQhIUV5/HYNS9In4A9t4HfY8 w9AVubJSyHPTCZD/7HKTLT5z9eiyrouQF6cgwqV20fcF2WvyLOTo+mWXL8/9gKNGl/ 35GKLamK7nrf3Ub57zzb+vScfNRXcd/76FyClTGVhn2Fg3G9R8Mw5198jezUkhChrT eJjuqDpbW+Xxw== To: Paul Winalski Message-ID: In-Reply-To: References: Feedback-ID: 35591162:user:proton MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Message-ID-Hash: CEB7DND7W4R243DSK6BALBA3MK55CR2H X-Message-ID-Hash: CEB7DND7W4R243DSK6BALBA3MK55CR2H X-MailFrom: segaloco@protonmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: COFF X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [COFF] Re: White Backgrounds on GUIs after Dark Backgrounds on Terminals? List-Id: Computer Old Farts Forum Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: segaloco via COFF Reply-To: segaloco X-Spam: Yes > The phosphors on CRT screens don't last forever. You only want to > light them when necessary. So once upon a time I went to one of our labs for an implementation project= . One of the local techs was showing me around the server room and among t= he various bits was a probably early 2000s CRT that was just collecting dus= t. It was an eMachines flat screen with the silver bezel. Well, being the= proud owner of a silver-bezeled Trinitron, I asked if I could take it off = their hands on the way back and have myself a decent CRT monitor again to m= atch my TV. I was told no can do, and in the process learned why it was si= tting there. It had been a display for a piece of equipment that ran all s= orts of radiochemistry stuff and had been on so frequently that critical id= entifying information re: the lab was burned into it from the LIMS system l= anding page that was on the screen daily for years. They legally had to de= stroy it at some point and just kept it around as a test monitor in the mea= ntime. I've heard similar stories with screens used in sensitive sites lik= e military installations, that the retentive properties of the phosphor scr= een made them a legitimate security concern. - Matt G.