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Brian J Hoskins
Attended Brynteg Comprehensive School
Lives in Laugharne SA33 4QH, United Kingdom
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Brian J Hoskins

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I've just signed up to an online course in the 'go' programming language, which starts in January #golang

http://courses.rubylearning.org/145093203937379060418098/summary.sv
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Brian J Hoskins

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PumpkinPi! #Halloween  
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More work on the CMOS CLOCK this evening.  Hoping to build it this weekend.
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WOW! Now that's a clock!!!
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This was really interesting.  I was also a massive fan of #Elite as a child, and I too played it for hours and hours.  For me things had moved on just a little bit by the time I got on to Elite; my introduction to it was Frontier Elite on the #Amiga ,  which was fantastic.

I was also extremely interested to hear how Richard Hill became so obsessed with the game and how it worked that he was inspired to learn to program and write his own version of the game, just for fun.
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The new Range Rover has nice fat 'slick' road tyres.  Better on the black stuff than the old RR's skinny chunky tyres.

Put them both on the grass and then see what happens ;-)

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Have him in circles
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Brian J Hoskins

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Today's home-brew PCB; it's a breakout board for an 18F87J50 with support for USB, SPI, RS232 and some power supplies. The board can be designed into projects by building hats for it, which connect to the 2.54mm connectors which enclose the micro. #electronics #homebrewpcb
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Quite right. It isn't an effective use of my time - I only etch my own
when I'm in a rush. I can get boards made in China by Elecrow for very
reasonable price if I'm prepared to wait three weeks. It depends on how
much of a rush one is in. I'm learning to temper my enthusiasm and wait -
grumble!
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#Tasker : Automatically disable your phone's pin/password lock when you're at home.

http://brianhoskins.uk/tasker-disable-pin-lock-near-home/
Use Tasker on Android to disable your pin or password lock when you're at home.
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These are popular with the Amiga scene.  People use them to run MorphOS, an AmigaOS derivative.

Brian J Hoskins

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Thanks very much, I really enjoyed this video!

A couple of things occurred to me while I was watching it:

1. Regarding YCbCr, I understand that this allows you to transmit less information than for RGB, and I got the gist that this is because no green information is transmitted (no Cg).  However, I didn't hear that explicitly stated as such.  Also I didn't really understand the mathtrickery which allows the green information to be recovered after.
So I have some reading up to do on that.

2. I followed the rest of the compression process very well and understood what was going on, but I got lost during the DCTIII process.  I couldn't grasp what was going on there; more reading up to do!

3. I was interested to learn that the quantisation table information is included in the file header.  This, I guess, explains why some corrupted photos get totally screwed.  I have used some jpg recovery software in the past, but I've found that most photos are not able to be recovered at all. 
But something occurred to me:
a) Is it possible that you could build up a library of commonly used quantisation tables and then program some software to systematically try them all in an attempt to recover a photo where the header was completely missing? Or if the header was only corrupted, the quantisation table could be guessed from what is already there?
b) It seems to me that there should have been standardisation of quantisation tables.  We should all have agreed on a quantisation table library.  This would make photo recovery much easier? Ok so I guess you'll say that the industry does not plan their compression algorithms for consumer corruption of data.  But it's a big problem; I'm betting everyone has experienced it at least once.

Thanks again for the very interesting video!

Brian J Hoskins

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The Amiga turns 30—“Nobody had ever designed a personal computer this way”

Ars Technica are also covering the Amiga’s 30th anniversary. Journalism is prone to hyperbole, but on July 23, 1985 technology genuinely changed forever. At New York's Lincoln Center, as a full orchestra scored the evening and all its employees appeared in tuxedos, Commodore unveiled the work of its newly acquired Amiga subsidiary for the first time. The world finally saw a real Amiga 1000 and all its features. A baboon's face at 640x400 resolution felt life-changing, and icons like Blondie's Debbie Harry and Andy Warhol came onstage to demo state-of-the-art technology like a paint program.

Today, Amiga—specifically its initial Amiga 1000 computer—officially turns 30. The Computer History Museum (CHM) in Mountain View, CA will commemorate the event this weekend (July 25 and 26) with firsthand hardware exhibits, speakers, and a banquet where the Viva Amiga documentary will be shown. It's merely the most high-profile event among dozens of Amiga commemorative ceremonies across the world, from Australia to Germany to Cleveland…
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Have him in circles
116 people
Alexander Lang's profile photo
Christopher Thoburn's profile photo
Nerys John's profile photo
B Mabbs's profile photo
Ankit Srivastava's profile photo
Mitch Battros's profile photo
ECUCHIP AUTO's profile photo
Mair Hunt's profile photo
John Stevenson's profile photo
Work
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Electronics Engineer & Computer Programmer
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Electronics Design, PCB Design, Programming: C, C#, Assembly
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Currently
Laugharne SA33 4QH, United Kingdom
Previously
Pencoed, United Kingdom - Brackla, United Kingdom - Maesteg
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Electronics Engineer & Computer Programmer
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Education
  • Brynteg Comprehensive School
    1992 - 1998
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Flying at G3 Speed!
amigafun.blogspot.com

The next hurdle took the better part of half a year. Mostly as I shelved the project after unsuccessfully getting the PPC to execute code. B