At 09:42 -0600 2/14/06, Matt wrote: >This is a little off the subject, but not completely. I read somewhere a long >time ago that USB is basically ADB. Or that USB is an enhanced version of >ADB... or something like that.
Nope. They are quite different. ADB services one device at a time and runs at 10 kHz. Devices present but not in use have to request promotion to the active device by grounding the data line at a prescribed time. Plus 5 volt power is provided on a separate wire. USB is full duplex, but still time shared. Each device has its own address up to 127 and works independently of any "active" device. It's also much faster - up to 12 MHz. Carefully controlled power is provided and external power is allowed. -- -->The Creator is the God who provided the void and the rules that matter and energy must live by in order to exist in it. Intelligent designers and engineers create useful stuff while abiding by the rules.<-- -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:g-list@mail.maclaunch.com> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
