Path: csiph.com!eeepc.pasdenom.info!news.pasdenom.info!news.dougwise.org!gegeweb.org!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!weretis.net!feeder4.news.weretis.net!news.albasani.net!not-for-mail From: Lew Newsgroups: comp.lang.java.programmer Subject: Re: Intel architecture (Was: Java vs C++) Date: Wed, 09 Feb 2011 00:15:05 -0500 Organization: albasani.net Lines: 36 Message-ID: References: <4d4e7634$0$81475$e4fe514c@news.xs4all.nl> <4d4f55ba$0$23758$14726298@news.sunsite.dk> <4d50b4dc$0$32795$c30e37c6@exi-reader.telstra.net> <4d50da6e$0$32794$c30e37c6@exi-reader.telstra.net> <4d521cac$0$32796$c30e37c6@exi-reader.telstra.net> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: news.albasani.net 3hoDK7Qjvw5az53/MS8dlyP3ici/ENWgrm83zEUwVW8lJal2dNltDIgo5Mrc21aq1y17X+unir9lNP42GN+G2g== NNTP-Posting-Date: Wed, 9 Feb 2011 05:14:41 +0000 (UTC) In-Reply-To: <4d521cac$0$32796$c30e37c6@exi-reader.telstra.net> Cancel-Lock: sha1:nJmw36DoPpTMmHYCpS1rwcD9nLU= User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101208 Thunderbird/3.1.7 Injection-Info: news.albasani.net; logging-data="VvR3JMYBlAcSrjLhnT9fooHdtFjfBxA0ohX3KQCFcOWmgHW1IUPZjiIH0cHFtNap5BYPrUeeQLBhl7zVU+fSRvuxPwMffZLqjaNHpzJppzspqcYE6qB5IL3B+EEn1v/e"; mail-complaints-to="abuse@albasani.net" Xref: csiph.com comp.lang.java.programmer:25727 Lawrence D'Oliveiro wrote: >> Nobody seriously used that stuff, because none of it was of any use. Esmond Pitt wrote: > Windows 95 used it, ditto 98, and every version of NT. Ditto NetWare 4. Lawrence D'Oliveiro wrote: >> The only OS designed to try to make use of it, OS/2, flopped. Esmond Pitt wrote: > For that reason? That quote is out of context, but if "Lawrence D'Oliveiro" was saying that use of clever Intel tricks like hardware multitasking and privilege rings were used only by OS/2 (is that what he said? I missed his post.), the other OSes you cite aren't the only ones, either. QNX, for example, was doing that on the '286, and they're still very much in business, too. They also leveraged the segmented architecture quite nicely. Typically, multiple instances of the same program shared the code segment and only allocated individual data segments. We put three simultaneous users on terminals into the same application on a '386 with 2 MB of RAM and it ran like a bat out of hell and never felt pinched for memory. -- Lew Ceci n'est pas une fenêtre. .___________. |###] | [###| |##/ | *\##| |#/ * | \#| |#----|----#| || | * || |o * | o| |_____|_____| |===========|