Guest jasmine@hutmail.com Posted November 10, 2007 Posted November 10, 2007 I have been looking to buy a USB 2.0 card, and was looking online to see what's available. I noticed one card that has both USB and FIREWIRE. What is the purpose of Firewire? Or maybe I should ask what it's used for. I also noticed some ads saying that it can use up to 127 USB devices. I see no reason to ever need that many, but lets say I wanted 20 devices. The computer has 2 ports and lets say I plug a 4 port hub into each, that's still only 8 usable ports. How could someone get more? Do they just keep adding hubs into hubs, or what? Thanks
Guest Jeff Richards Posted November 10, 2007 Posted November 10, 2007 Re: What is Firewire for? Firewire (or IEE 1394) is another form of high speed serial connection. It's commonly used for video data, but it could be anything, including connecting an external disk drive. http://en.wikipedia.org/wiki/Firewire Multiple USB devices are connected by cascading hubs, as you guessed. Arranging the topology correctly is important in getting maximum performance, as is the arrangement for powering each hub and each device, but it's certainly possible to have a very large number of devices. Of course, if you really were contemplating that many USB devices you would start with a card that has as many USB controllers (ports) as possible.. -- Jeff Richards MS MVP (Windows - Shell/User) <jasmine@hutmail.com> wrote in message news:h1sbj3ld7kcms1mdft8sgdlsuut4rpmpu7@4ax.com... >I have been looking to buy a USB 2.0 card, and was looking online to > see what's available. I noticed one card that has both USB and > FIREWIRE. What is the purpose of Firewire? Or maybe I should ask > what it's used for. > > I also noticed some ads saying that it can use up to 127 USB devices. > I see no reason to ever need that many, but lets say I wanted 20 > devices. The computer has 2 ports and lets say I plug a 4 port hub > into each, that's still only 8 usable ports. How could someone get > more? Do they just keep adding hubs into hubs, or what? > > Thanks
Guest Franc Zabkar Posted November 10, 2007 Posted November 10, 2007 Re: What is Firewire for? On Sat, 10 Nov 2007 12:00:56 -0600, jasmine@hutmail.com put finger to keyboard and composed: >I have been looking to buy a USB 2.0 card, and was looking online to >see what's available. I noticed one card that has both USB and >FIREWIRE. What is the purpose of Firewire? Or maybe I should ask >what it's used for. If you have a camcorder, check whether it has a DV port. That's Firewire by another name. - Franc Zabkar -- Please remove one 'i' from my address when replying by email.
Guest Lil' Dave Posted November 11, 2007 Posted November 11, 2007 Re: What is Firewire for? What firewire is, is what sold me on it. Unlike USB, most of the code for communication is written and available for use prior to the OS utilizing it. Less overhead. Good for local PC, not using alot of devices on its bus. Use it for the digital camera/camcorder and external hard drives connected alternatively. Some also like for local comm line between PC and laptop in XP. USB multi-device beyond a tens range is not realistic. If available for irq use, USB and Firewire can be both be utilized. -- Dave Profound is we're here due to a chance arrangement of chemicals in the ocean billions of years ago. More profound is we made it to the top of the food chain per our reasoning abilities. Most profound is the denial of why we may be on the way out. <jasmine@hutmail.com> wrote in message news:h1sbj3ld7kcms1mdft8sgdlsuut4rpmpu7@4ax.com... >I have been looking to buy a USB 2.0 card, and was looking online to > see what's available. I noticed one card that has both USB and > FIREWIRE. What is the purpose of Firewire? Or maybe I should ask > what it's used for. > > I also noticed some ads saying that it can use up to 127 USB devices. > I see no reason to ever need that many, but lets say I wanted 20 > devices. The computer has 2 ports and lets say I plug a 4 port hub > into each, that's still only 8 usable ports. How could someone get > more? Do they just keep adding hubs into hubs, or what? > > Thanks
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