Re: The history of the MONITOR tops-10)

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#625000

From: Johnny Billquist
Date: Sun, 15 Jul 2018 10:01

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On 2018-07-15 01:59, Bob Eager wrote:
> On Sat, 14 Jul 2018 21:22:17 +0200, Johnny Billquist wrote:
> 
>> Disk directly to buffers in user space in Linux? Sure, it's called mmap.
>> Which, by the way, is more or less a direct ripoff from TOPS-20.
> 
> Which was a ripoff from MULTICS and EMAS.

I'm not sure about that. Multics, from what I read, considered memory 
and files to be the same thing. This is sort of a different idea than 
saying that you can map a file into a specific part of your memory. I 
have no idea how or what EMAS is. :-)

But the comment about the ripoff goes as far as the Unix mmap API being 
pretty much a copy of TOPS-20.

   Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: b...@softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

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From: Johnny Billquist <b...@softjar.se>
Newsgroups: alt.sys.pdp10,alt.folklore.computers
Subject: Re: The history of the MONITOR tops-10)
Date: Sun, 15 Jul 2018 12:01:19 +0200
Organization: Update Computer Club
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