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Offline commodorejohn

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Re: Raspberry PI
« Reply #14 from previous page: October 17, 2012, 05:59:13 AM »
Quote from: bbond007;711753
I can't have something like a PDP-11, it takes too much power and probably produces a bunch of heat than my AC would then have to cool... PI is more my budget.
I don't know for sure; I've asked some of the minicomputer fanatics over on the Vintage Computer Forums about power draw before, and they weren't sure of anything conclusive. Later models at least are probably better (and the PDP-11 was always a mid-range sort of machine anyway, compared to the PDP-10 - which had power supplies so inefficient that CompuServe, which used a bunch of them, had to design a replacement!)

In any case, mine is not one of the classic fridge-sized minicomputer models; it's a microcomputer version (or at least inasmuch as you can say that a tower case the size of a small radiator is "micro.") The power supply's only 320W; I'm pretty sure my P4 gaming rig uses more than that. Budget's still an issue, though, since DEC gear of any kind is prey for collectors and service agencies trying to maintain ancient field installations alike; mine was a very lucky score at the recycle center, which only wanted scrap value for it - followed by an extremely lucky score of a bunch of upgrade parts from another machine that they were obligated to scrap but let me pull the boards from.

I kinda would like a full-fledged minicomputer with a proper lights-and-switches front panel, but as I have neither the space nor the budget, my MicroPDP-11'll do just fine for now ;)
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Synthesizers: Roland JX-10/MT-32/D-10, Oberheim Matrix-6, Yamaha DX7/FB-01, Korg MS-20 Mini, Ensoniq Mirage/SQ-80, Sequential Circuits Prophet-600, Hohner String Performer

"\'Legacy code\' often differs from its suggested alternative by actually working and scaling." - Bjarne Stroustrup
 

Offline commodorejohn

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Re: Raspberry PI
« Reply #15 on: October 17, 2012, 07:18:49 PM »
Quote from: persia;711778
PDP-1 anyone?
Oh, I wish. Got to see one of the last remaining units in existence when I visited the Computer History Museum, but sadly I didn't get to see a demo. Maybe when I go back to California this Christmas...

Quote from: bbond007;711781
I don't suppose you would leave the PDP running 24/7, then then again, that's probably what its designed for...
It is, but then that's in an industrial or business environment where your power budget is already high. For me, it's no skin off my nose, as my utilities are included in the rent :D But I don't anyway, as the fans are quite loud and it's a small apartment; I only left it on overnight the once (when I was imaging the hard drive - over the serial port, joy,) and that was plenty. Though it doesn't actually seem to run hot, anyway, not sure why it needs to move that much air...

Quote
I remember when I was a teenager and the school was trying to get rid of some sort of big mainframe thing with tape drives... I tried to convince my dad to bring it home with his truck as it would not fit in my mustang-II. He said no way, so I must not have  convincing enough. I guess that was my one shot of having a mainframe.
Aw, bummer...
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Synthesizers: Roland JX-10/MT-32/D-10, Oberheim Matrix-6, Yamaha DX7/FB-01, Korg MS-20 Mini, Ensoniq Mirage/SQ-80, Sequential Circuits Prophet-600, Hohner String Performer

"\'Legacy code\' often differs from its suggested alternative by actually working and scaling." - Bjarne Stroustrup
 

Offline commodorejohn

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Re: Raspberry PI
« Reply #16 on: October 17, 2012, 09:08:52 PM »
Lucky bastard!
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Synthesizers: Roland JX-10/MT-32/D-10, Oberheim Matrix-6, Yamaha DX7/FB-01, Korg MS-20 Mini, Ensoniq Mirage/SQ-80, Sequential Circuits Prophet-600, Hohner String Performer

"\'Legacy code\' often differs from its suggested alternative by actually working and scaling." - Bjarne Stroustrup
 

Offline commodorejohn

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Re: Raspberry PI
« Reply #17 on: October 17, 2012, 11:34:09 PM »
I wear it as a badge of pride ;)
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
Synthesizers: Roland JX-10/MT-32/D-10, Oberheim Matrix-6, Yamaha DX7/FB-01, Korg MS-20 Mini, Ensoniq Mirage/SQ-80, Sequential Circuits Prophet-600, Hohner String Performer

"\'Legacy code\' often differs from its suggested alternative by actually working and scaling." - Bjarne Stroustrup