[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [ARSCLIST] Preservation media WAS: Cataloguing still :-)
1983: CDs (compact discs, not certificates of deposit) go on sale.
and see <http://www.oneoffcd.com/info/historycd.cfm>
and google for more.
In junior high I did a long report on how records were made - the
technology and the history. I try to keep up still. There are lots of
stories, such as the president of Sony wanted CDs to be big enough for
the longest piece of music - Beethoven's Ninth - which is how they got
to be 74 minutes at first. I never understood why thay didn't make them
as long as cassette tapes, 90 minutes, which would have made so much
Lou Judson • Intuitive Audio
On Sep 5, 2006, at 1:08 PM, Roger and Allison Kulp wrote:
Japan.Sony inroduced them,like 1981 or so.
steven c <stevenc@xxxxxxxxxxxxxx> wrote: ----- Original Message -----
From: "Don Cox"
How did engineers make the first CDs, when hard drives were not big
enough to hold 600 Megs of data?
Actually, I'm not sure...but one way it COULD have been done is with
magnetic tape storage, since that was used on mainframe computers at
least in the early seventies, if not before. When I was working my
way through university as a security guard for State Farm ('74-'76)
I recall seeing carts loaded with HUGE reels of data tape...and I
have no idea what the length v. data capacity algorithm might have
been (or how many reels of tape, if more than one, would be needed
to store the digital capacity of a CD...?)
In fact, where WERE CD's introduced commercially?
Steven C. Barr
All-new Yahoo! Mail - Fire up a more powerful email and get things