From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: * X-Spam-Status: No, score=1.3 required=5.0 tests=BAYES_00,INVALID_MSGID, MSGID_RANDY autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,f495c7652c09dd8c X-Google-Attributes: gid103376,public From: Robert Dewar Subject: Re: Does this model work ? Date: 1999/05/16 Message-ID: <7hmevf$lik$1@nnrp1.deja.com>#1/1 X-Deja-AN: 478443466 References: <373e38e2.31311363@news2.ibm.net> <373C5244.3A16F5B8@easystreet.com> <374a882a.4192147@news2.ibm.net> X-Http-Proxy: 1.0 x34.deja.com:80 (Squid/1.1.22) for client 205.232.38.14 Organization: Deja.com - Share what you know. Learn what you don't. X-Article-Creation-Date: Sun May 16 12:50:55 1999 GMT Newsgroups: comp.lang.ada X-Http-User-Agent: Mozilla/4.04 [en] (OS/2; I) Date: 1999-05-16T00:00:00+00:00 List-Id: In article , Florian Weimer wrote: > jmarten@ibm.net (Jean-Marten Marchi) writes: > > > Ah, nothing is new in this business ! Didn't Pascal have a Virtual > > Machine too? > > AFAIK there were quite a few compilers out there which compiled to > byte code. You just didn't call it Virtual Machine, then. The term virtual machine is very old. And yes, UCSD Pascal was often referred to using this term. It is entertaining to see how many people think that Java actually invented the notion of byte code. UCSD Pascal was implemented on many many machines, and there was a big catalog of applications (databases, word processors, spread sheets, etc etc) that were available in byte code form. Why didn't it catch on? Many reasons, mostly non-technical. I knew UCSD Pascal quite well, I helped design the world's fastest UCSD machine (from Versal), and wrote several large scale UCSD Pascal applications, including a full featured fancy word processor that was one of the first to have full support for proportional width fonts (which were supported directly in the Versal display hardware, which was quite clever, you gave it fixed matric font definitions, and it eliminated multiple blank vertical columns at the display level). Ah, the old days :-) --== Sent via Deja.com http://www.deja.com/ ==-- ---Share what you know. Learn what you don't.---