was the cd invented before the hard drive or did the hard drive invent the cd?
2006-09-15 11:00:38 · 23 answers · asked by strings 1 in Consumer Electronics ➔ Other - Electronics
the hard drive
2006-09-15 11:01:51 · answer #1 · answered by kittybeargirl 1 · 0⤊ 0⤋
The first hard disk drive was the IBM 350 Disk File, invented by Reynold Johnson and introduced in 1955 with the IBM 305 computer.
Laserdisc technology, using a transparent disc, was invented by David Paul Gregg in 1958 (and patented in 1961 and 1969). This was the forerunner of modern CDs which were developed in the 70s from Laserdisc technology. The first massed produced commercial CD was produced in 1982.
2006-09-15 11:02:00 · answer #2 · answered by freetronics 5 · 0⤊ 0⤋
The Hard drive came first, but it used to be a lot bigger than it is now. CDs only came out about, maybe, 20 years ago. Hard drives have been around for about 30.
2006-09-15 11:03:30 · answer #3 · answered by Marshal 2 · 0⤊ 0⤋
The CD came first. It came out in the 80's as music CD's. Only after it started catching on as a storage device did it begin to hold DVD's and computer storage. That didn't catch on until the 90's.
Edit: I think I misunderstood your question at first. The hard drive came first, long before the CD. I was thinking you were asking about CD-ROM drives. Guess I need to read the details!
2006-09-15 11:02:59 · answer #4 · answered by lizardmama 6 · 0⤊ 0⤋
The first hard disk drive was the IBM 350 Disk File, invented by Reynold Johnson and introduced in 1955 with the IBM 305 computer. This drive had fifty 24 inch platters, with a total capacity of five million characters. A single head was used for access to all the platters, making the average access time very slow. It is possibly influenced by Drum memory devices, which were invented in 1932.
The cd-rom - 1984
2006-09-15 11:02:08 · answer #5 · answered by magnet4trouble 4 · 1⤊ 0⤋
That's easy. the first hard drive ws developed in 1969 by what we now know as Maxtor. It was the size of two refirgerators, and could hold a file smaller than an MP3. CDs were developped in the mid 80s, and only released to the public in the 90s.
2006-09-15 11:04:24 · answer #6 · answered by Anonymous · 0⤊ 0⤋
the hard drive was first the cd only came out like 30 yrs ago
2006-09-15 11:02:18 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Hard drives are a different technology than CD's. They have been in use much longer.
2006-09-15 11:02:46 · answer #8 · answered by brucenjacobs 4 · 0⤊ 0⤋
Possibly the hard drive
2006-09-15 11:02:54 · answer #9 · answered by Candy 5 · 0⤊ 0⤋
i could propose that if a channel is going to be shared between a no longer user-friendly disk and a CD/DVD force, the no longer user-friendly disk is the grasp and the optical force the slave, relatively in case you opt to run an working gadget (Vista) from the 2nd disk. or you ought to place 2 no longer user-friendly disks on the well-known cable and use the secondary for optical drives. As on your 2nd question, once you boot out of your Vista DVD and run for the time of the setup software you will acquire the choice to p.c. which no longer user-friendly disk or partition to load Vista onto. during installation a boot menu would be setup so you might enable you elect which gadget to load every time you start up the laptop.
2016-12-18 10:56:54 · answer #10 · answered by ? 4 · 0⤊ 0⤋
The hard drive, of course.. cd's are written with laser optics, hard drives are written with writing heads..
Research is what it's all about..
2006-09-15 11:08:49 · answer #11 · answered by chuckufarley2a 6 · 0⤊ 0⤋