More on Pi based net/internet radio music player

On Fri, 1 Feb 2019 12:27:41 +0000, The Natural Philosopher declaimed the following:

So far as I know, NOOBS is an OS selector/installer... The default OS (ie; the one that is compressed on the NOOBS image, and not one that it goes online to download) IS Raspbian... Though likely most of the full install, not the Lite.

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	Wulfraed                 Dennis Lee Bieber         AF6VN 
	wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

It's turned off or there's something broken in your network setup.... I'm pinging 192.168.0.200 now and there's no response.

I would be shocked if you did get a response from 192.168.0.200.

192.168.0.0-192.168.255.255 is reserved by RFC 1918 for private networks and is supposed to be filtered on the open Internet. As are 10.0.0.0-10.255.255.255 and 172.16.0.0-172.31.255.255.

(Presuming that you are not connected to The Natural Philosopher's network.)

--
Grant. . . . 
unix || die

Very funny :-)

--
Outside of a dog, a book is a man's best friend. Inside of a dog it's  
too dark to read. 

Groucho Marx

I assumed he was in fact joking.

Don't tell me he was, in fact, serious...

--
Outside of a dog, a book is a man's best friend. Inside of a dog it's  
too dark to read. 

Groucho Marx

whoosh!

My pleasure.

Try 127.0.0.1, you should be able to ping it there.

Hopefully.

I've been on too many support forums / newsgroups / mailing lists / discussions in the last year where people were serious.

So I've taken to not assuming that people are joking.

--
Grant. . . . 
unix || die

Dang! How did you know that?

Depends which sort of ARM code you are talking about.

aarch32 ARM mode is less dense than x86 as it is fixed width 32 bit instructions, where as x86 is variable width. Thumb mode is fixed 16 bit, so more dense for non trivial code. Thumb2 which is actually what most compilers emit is 16/32 mixed, and more comparable to x86, although the x86 being a mem/mem rather than a load/store architecture generally results in better code density, at the expense of performance.

aarch64 tends to be more dense than aarch32 ARM mode due in some part to the larger register bank, but mainly due to some of the many new instructions. Its also more dense than AMD64.

---druck

Looking down the process list it is also instrucytove to see how fewe priocesses weer actally ruinng,. A Lot of power and RAM goes running a desktop methinks

--
Of what good are dead warriors? ? Warriors are those who desire battle  
more than peace. Those who seek battle despite peace. Those who thump  
their spears on the ground and talk of honor. Those who leap high the  
battle dance and dream of glory ? The good of dead warriors, Mother, is  
that they are dead. 
Sheri S Tepper: The Awakeners.

Yep.

Just compare what we were able to do with mainframes, minis and 8-bit microcomputers back in the day when interactive devices were 24x80 textmode terminals or teletypes:

- my university's scientific computer, an Elliott 503, had 8Kwords of 39 bit memory (call it 48KB equivalent because each word held two instructions). It used paper tape for input and a lineprinter for output and everything we ran on it was written in Algol 60.

- after university, the computer bureau where I worked had four teletype terminals plus an RJE device (remote cardreader and printer)and ran additional background jobs under a multiuser, multitasking OS on a 32 Kword (96KB equivalent) 1902S with 2 60MB disks, 6 tape drives plus card and paper tape readers and a fast (1250 lpm) printer.

- my 6809 FLEX box was a perfectly adequate development system with 48K RAM and a pair of 1.2MB floppies. I wrote code in assembler, PL/9 and C on that and so did everybody else with similar kit.

- Back in the MS-DOS days Bill Gates was on record as saying that nobody could ever need more than 640 KB of RAM (the limit for an IBM PC-AT).

RAM only mushroomed with the appearance of multicolour graphical desktops and the idea that all apps MUST have a graphical UI or users' brains would explode.

--
Martin    | martin at 
Gregorie  | gregorie dot org

As did I.

Indeed.

I nearly posted that, but resisted the temptation.

Mine (hand wired on a double extended Eurocard) had 56 kiB, but 8 kiB of that was OS and scratch space; yours may have been the same.

(I still have the system. I can't bear to throw it away.)

Some of us wrote our code in TSC Extended BASIC :-)

Dave

On Sun, 3 Feb 2019 12:41:09 +0000 (UTC), Martin Gregorie declaimed the following:

Xerox Sigma-6... Relatively fat machine for the mid-70s (four-bank/four-port, interleaved) 512kB (though I could swear ours was somehow doubled to 1Mb*). On a good day we'd often have between 40 and 60 terminals active, along with the batch queue (we actually had a Honeywell Level-6 being used as a terminal server, replacing racks of Gandalf equipment

)

Pretty sure we had 6 100MB drives, and it was a big thing when we obtained a 300MB drive to be used for swap space.

The chip could access 1MB, but probably used some of that for memory mapped I/O (rather than using the separate I/O port/control that Intel chips supported).

• The memory cabinets were "refrigerator" sized, originally holding magnetic core memory... However, by the late 70s, the core had been replaced with 18x18" circuit cards with RAM chips, making for a very empty looking cabinet.

The multi-port interleave allowed the CPU and three I/O Processors to chase each other through memory -- while the CPU accesses, say, word 4, the IOPs can each access words 2, 3, and 5 (again as an example) -- without having to put wait states for any other. Closest I've seen to that is the Amiga -- with the first 512kB being "chip" memory (dual ported, accessed by CPU and by special chips; extended memory was only CPU accessed)

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	Wulfraed                 Dennis Lee Bieber         AF6VN 
	wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

Perhaps you can give a reference for whatever leads you to believe that to be a true statement because it was never said by W. Gates III?

Not a lot in my recollection. At university, 40+ users on a 1MW Prime

750 seemed to stop the bugger in its tracks. The PDP-10s we had were no better and more heavily loaded.