USB - Firewire tangent
really, I have not used that port in 5 years. I transfer a lot of data through USB and every drive I bought in the last 3 years was USB...
While "lots of data" is in the eye of the beholder, give yourself a pat on the back for thus being lucky to be unaffected. I have a USB2 scanner in storage out in my garage that I replaced with a Firewire one a couple of years ago because the USB was so painfully slow in transferring 1GB sized scans, and I really don't look "forward" to "upgrading" back to USB2.
USB2.0 was quicker than the original fireware
Hardly. The first 1024 bytes would get there 50 milliseconds sooner in USB2 (hardly significant), but otherwise, USB2 averages around 40% less throughput than FW400 due to high overhead, which makes it "slower" in transferring the actual useful data. The bottom line to all of this is that all interfaces useful ("real world") bandwidth is always calculated by:
Useful Bandwidth = (Total Bandwidth) - (Bandwidth consumed by overhead).
then a new firewire came out. then USB 3.0 is supposed to be quicker than that.
The jury is still out on what USB3's throughput performance is going to be, and if that will be faster-vs-slower than FW3200.
What is known today is that FW3200 has reported a protocol overhead rate of only 3%. As such, FW3200 is deliver around 3.1Gbps useful.
Turning to USB3, its protocol overhead rate is still "TBD". If USB3 operates as inefficiently as USB2, it will only deliver 2.4Gbps useful. There is talk that USB3 will use less overhead than USB2, but I've not yet seen any real world numbers. Simplistically, USB3 needs to double their efficiency vs. USB2 in order to be measurably (10-15%) faster than FW3200. Time will tell.
What's good about USB? backward compatibility for slower 2.0 and 1.0 without needing a separate cable or converter plug (hence the name Universal Serial Bus).
Guess what happens when you put a USB3 equipped peripheral through a USB2 hub to your USB3 equipped PC? You get USB2 speeds.
Similarly, a USB3 peripheral--USB2 cable--USB3 PC ==> USB2 speeds.
Good luck keeping all the "bits and pieces" organized.
What I've also not seen an answer on is what happens when there's a single non-USB3 device anywhere on the port's breakout...will all of the devices have to drop back to USB2 speeds (like what USB2 currently does when any 1.1 is present), or will USB3 be able negotiate individually to each?
What is known about USB3 is that there will be a controller chip required, so its cost advantage vs. FW will be gone, and considering that the cables will include fiber, they're not initially going to be cheap.
I can walk up to any computer that has a USB and 99% of the time my device works. However with firewire, the port may be different.
With USB, there's two different "A" plugs and three different "B" plugs:
USB-A, USB-B, Mini-B, Micro-A, and Micro-B. Personally, I've found that flash drives typically use USB-B and cameras/phones use Mini-B or Micro-B.
Same with the old Beta/VHS argument. Beta certainately better, however VHS won out (although that was due to marketing and opening the format to others) and became the standard.
So Firewire may be better, but USB is more the adopted format.
Yes, USB2 is the defacto format; the jury is out on USB3 until it actually ships. At present, it represents a case of the 'Better' (FW400) being killed off because of the 'Good Enough' (USB2) although this really is an Apple failing for not upgrading FW400 to FW800 on previous revisions, so as to help aid it in its differentiation through higher performance (FW800 is ~3x faster than USB2).
Back on subject, I did personally appreciate the new ads, due to their sense of irony and light touch of sarcasm. While you can argue that they require prior consumer knowledge to understand the humor that is being made, when one of the friends in the room go "gets it" laughs up a lung, those who didn't get it are afforded the opportunity for an individualized viral advocacy to take place. Not as dumb as it sounds, particularly when the ads air at events likely to have a larger and mixed audience (eg, football games).
-hh