1) I came across a news article the other day about how Comcast is going to start cooperating with someone (YouTube maybe?) in managing their internet traffic. Seems videos are clogging up the internet. Who'd a thunk it?
2) You can buy a one terabyte capacity hard disk drive for $200. My computer has an 80 gigabyte hard disk and it is only half full. My son, the computer whiz has a couple 250 GB disks in his system. What do people need that much capacity for? Videos, people tell me. Well, I suppose. If you are a video nut, maybe you would want all of your videos immediately accessible. Me, I watch a movie once and that is usually enough. If it's a good movie I can watch it again in a few years maybe, but it's not really a high priority.
If I wanted any kind of high capacity storage for movies, I would want one of those carousels that hold 2 or 300 disks. They are built for CD's, but you could replace the drive with a DVD drive. The advantage here is you don't have to wait for the disk to copy to the hard drive. The disadvantage is you have to buy the disk. But movies are so cheap these days, I think you would have to be a bit of a nut to want to spend the time copying the disks.
I am wondering where this disk drive technology is heading. I was just thinking that moving the read/write head is the slowest operation. It can take much longer to move to another track than to read an entire track. Perhaps if they had more recording heads the times would improve. Could you build a disk with one head per track? They used to do that back in the days of core memory. They had things called drum memory which were built using a cylinder a foot or two in diameter and two or three feet long. There were a row of recording heads running the length of the cylinder. Each head read/wrote one track on the "drum". Really fast, even by today's standards, though not much capacity.
If they had some way of making read/write heads for disks using the same technology they use for making chips, it might be possible to make a disk with a head for each track. What could you do with something like that?
Update December 2016 replaced missing pictures.
3 hours ago