t-jacobs@wasatch.UUCP (Tony Jacobs) (03/02/89)
Apple, while you're working on the new system, how about adding a feature or two for me. I'd like to be able to use a second monitor/mouse/keyboard for someone else in my family to use (Mac II) to do their own thing at the same time as I'm doing my thing. It is a whole heck of a lot cheaper to buy an extra monitor/mouse/keyboard than to buy an extra Mac. Plus if the ADB bus was set up to handle multiple mice/keyboards it would open up the possibility to do other wonderful things. -- Tony Jacobs * Center for Engineering Design * U of U * t-jacobs@ced.utah.edu
jfm@ruddles.sprl.umich.edu.engin.umich.edu (John F. Mansfield) (03/02/89)
In article <1212@wasatch.UUCP> t-jacobs@wasatch.UUCP (Tony Jacobs) writes: > >Plus if the ADB bus was set up to handle multiple mice/keyboards it would open >up the possibility to do other wonderful things. You can, the bus will accept several devices, you could daisy chain 2 keyboards, a trackball, a digitizer pad and finally a mouse with no problem. The mouse is the limiting problem having no extension socket like all of the others above. John Mansfield North Campus Electron Microbeam Analysis Laboratory 2455 Hayward, Ann Arbor, Michigan 48109-2143. 313-936-3352 Internet: jfm@ruddles.sprl.umich.edu or john_mansfield.um.cc.umich.edu
t-jacobs@wasatch.UUCP (Tony Jacobs) (03/02/89)
In article <41c54fc4.a590@mag.engin.umich.edu> jfm@ruddles.sprl.umich.edu.UUCP (John F. Mansfield) writes: >You can, the bus will accept several devices, you could daisy chain 2 >keyboards, a trackball, a digitizer pad and finally a mouse with no >problem. The mouse is the limiting problem having no extension socket >like all of the others above. I know you can plug in many things to the ADB, the Mac can't tell which one is which and therefore you can't have one process using one device and another using a different one. Like a mouse for each process. -- Tony Jacobs * Center for Engineering Design * U of U * t-jacobs@ced.utah.edu
jmunkki@kampi.hut.fi (Juri Munkki) (03/02/89)
In article <1216@wasatch.UUCP> t-jacobs@wasatch.utah.edu.UUCP (Tony Jacobs) writes: >In article <41c54fc4.a590@mag.engin.umich.edu> jfm@ruddles.sprl.umich.edu.UUCP (John F. Mansfield) writes: > >>You can, the bus will accept several devices, you could daisy chain 2 >>keyboards, a trackball, a digitizer pad and finally a mouse with no >>problem. The mouse is the limiting problem having no extension socket >>like all of the others above. > >I know you can plug in many things to the ADB, the Mac can't tell which one is >which and therefore you can't have one process using one device and another >using a different one. Like a mouse for each process. The Mac knows the ID of the ADB device. Just plug two different keyboards to a Mac and try to use key caps. Every time you hit a key, the window changes size & contents. The problem with a multiuser Mac is that the current implementation of Multifinder is not friendly to multiple users. Just look what happens when you have a background program doing something and you suddenly decide to choose something from a menu. _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._ | Juri Munkki jmunkki@hut.fi jmunkki@fingate.bitnet I Want Ne | | Helsinki University of Technology Computing Centre My Own XT | ^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^
gaige@lts.UUCP (Gaige B. Paulsen) (03/02/89)
t-jacobs@wasatch.utah.edu.UUCP (Tony Jacobs) writes:
I know you can plug in many things to the ADB, the Mac can't tell which one is
which and therefore you can't have one process using one device and another
using a different one. Like a mouse for each process.
--
Tony Jacobs * Center for Engineering Design * U of U * t-jacobs@ced.utah.edu
Actually, the Mac can tell which one is which, it just doesn't choose to act
upon the difference. I used to run with more that one keyboard to test some
KB mapping I was doing, and the Keyboard DA notes that you have changed
keyboards and changes the picture if they are different. But, even if they
are the same, the event with the keystroke in it has an identifier with
the keyboard's ADB ID.
Gaige B. Paulsen
Author
InterCon Systems Corporation