was not punch cards or tape used as storage when the first computer like mechanisms were invented.. a hole and no hole on paper.. this were a lot older than those vacuume tube computers.. they are more like type writers. I think. "Tony Smith" wrote in message news:20061127114031.D853BB07EB@mit.edu... > 2D bar codes have been around for a while. 417 is the general standard. > Saw one the other day on something odd, but I've forgotten what it was > was. > Odd enough for me to think 'that's odd', but not odd enough to remember > the > actual product. You see them on hard drives occasionally. > > There's not really such a thing as a bookland bar code, Bookland is a > mythical kingdom somewhere in Oceania. The first 2 digits of the EAN bar > code denotes the country, Australia is 93, New Zealand is 94 etc. 97 is > Bookland. The rest is the ISBN number (well, most of it). > > Seriously, all books come from the 'Kingdom of Bookland'. Except in the > US. > > My favorite was bar codes on tires. Looked like the 'bumpy' bar code in > the > link, (and probably is). Called a shadow bar code (or a shadow scanner), > it > solved the problem of printing a black bar code on a black item (white > printing would be a bit ugly). The bar code was sunken, and a light is > shone from the side. Looking down, you get light & shadows, enough > contrast > for a scan. I think that's how the bumpy bar codes actually work, not > some > weird braille-like reader it's suggesting. Then again, people like > building > odd stuff. > > Tony > > >> -----Original Message----- >> From: piclist-bounces@mit.edu >> [mailto:piclist-bounces@mit.edu] On Behalf Of Tamas Rudnai >> Sent: Monday, 27 November 2006 9:41 PM >> To: Microcontroller discussion list - Public. >> Subject: Re: [EE]:: New data storage called RVD can store >> 256GB on A4 page >> >> Storing data on a paper is far from new. There were couple of >> examples 20 years ago using ordinary paper scanners to load >> softwares published by computer magazines. But the best >> example is the bar code with different >> variaties: >> >> http://www.adams1.com/pub/russadam/stack.html >> >> The only thing is the density as Russell claims quite >> interesting how did they achieve that much and how accurate >> is that (if you think over printer could fail, scanning is >> dependent on many things etc. >> >> Tamas >> >> >> >> >> On 11/27/06, Tony Smith wrote: >> > >> > Google 'lace card'. >> > >> > Tony >> > >> > >> > > -----Original Message----- >> > > From: piclist-bounces@mit.edu >> > > [mailto:piclist-bounces@mit.edu] On Behalf Of Peter Bindels >> > > Sent: Monday, 27 November 2006 7:15 PM >> > > To: Microcontroller discussion list - Public. >> > > Subject: Re: [EE]:: New data storage called RVD can store >> 256GB on >> > > A4 page >> > > >> > > I think you'd get data loss if you stored the following data: >> > > >> > > 111111111 >> > > 100000001 >> > > 111111111 >> > > >> > > IE, the bit in the center will fall out and read as 1's, >> where they >> > > should be 0's. Also, I'm not sure it's as safe from nieces and >> > > nephews as my current harddisks. >> > > >> > > On 27/11/06, Tony Smith wrote: >> > > > > > This claims to be a new method of storing data at high >> > > > > density on paper. >> > > > > > I'll go on record as saying that (I think that) the >> claims are >> > > > > > rubbish, but it will be interesting to see if we are all >> > > > > storing our >> > > > > > data on paper in a few years time. >> > > > > >> > > > > >> > > > > OMG!!! Data can be stored on PAPER!!! What will they >> > > think of next? >> > > > > >> > > > > >> > > > > (Hey, I couldn't be the only one thinking it :-) >> > > > > >> > > > > -Denny >> > > > >> > > > >> > > > Yes, I think lots of people will poke holes in it. >> > > > >> > > > ...wait a minute... >> > > > >> > > > That's an idea! Poke holes in paper! It would be just >> > > like binary, a >> > > > hole means 1, no hole means 0. You could even shine a light >> > > > though it. Optical readers, cool. If you got the old fan-fold >> > > > paper, you could have massive storage. How many holes can you >> > > > poke in >> > > a box of that? >> > > > >> > > > Quick, to the patent office! >> > > > >> > > > Tony >> > > > >> > > > -- >> > > > http://www.piclist.com PIC/SX FAQ & list archive >> View/change your >> > > > membership options at >> > > http://mailman.mit.edu/mailman/listinfo/piclist >> > > > >> > > -- >> > > http://www.piclist.com PIC/SX FAQ & list archive View/change your >> > > membership options at >> > > http://mailman.mit.edu/mailman/listinfo/piclist >> > > >> > >> > -- >> > http://www.piclist.com PIC/SX FAQ & list archive View/change your >> > membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > >> >> >> >> -- >> unPIC -- The PIC Disassembler >> http://unpic.sourceforge.net >> > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist