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.
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
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!
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.
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…