At #18, Michigan must have missed the memo on testing. I guess they were focused on Ford Motor Co. making masks and ventilators, and whether President Trump would wear a mask when touring Ford Motor Company. He did.
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Enquiring Minds Want To Know:
Why Are CDs 120 MM In Size?
CDs: compact discs, not certificates of deposit.
Link here.
The story that Sony Vice-President Norio Ohga insisted on the new medium being able to accommodate Wilhelm Furtwängler’s reading of Beethoven’s Ninth — at the time, the longest recorded performance of the piece — has passed not only into legend, but into many official histories.
However, according to former Philips researcher Kees Immink, the 120mm diameter and 74-minute running time of the CD were actually the result of undignified horse-trading between Sony and Philips, whose relationship as co-developers of the format was sometimes rocky.
Until quite late in the development process, the disc was to have been 115mm in diameter, but this would have given Philips a competitive advantage, as their subsidiary Polygram already had a plant set up to produce 115mm discs. To level the playing field, Ohga insisted on a late change in the size of the disc.FWIW: a standard 120 mm CD-ROM holds about 650 megabytes, which is 0.64 gigabytes or 0.68 billion bytes.
Sophia: what's a CD?
I guess we shouldn’t even bring up 5.25” floppy disks with her; they didn’t even last long enough to transfer real early stuff to CD. Reel tape worked pretty good though, still used.
ReplyDelete... and we haven't even gotten to vinyl.... but, apparently LPs are coming back....wow, you've stuck with the blog for a long, long time. Thank you.
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