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- From: Aric.Caley@ofa123.fidonet.org
- Newsgroups: comp.sys.amiga.advocacy
- Subject: Re: CBM mention on 12/11
- X-Sender: newtout 0.02 Nov 17 1992
- Message-ID: <n12a2t@ofa123.fidonet.org>
- Date: 20 Dec 92 17:52:00
- Lines: 48
-
- > Organization: University of Waterloo
- > From: papresco@cantor.math.uwaterloo.ca (Paul Prescod)
- > Message-ID: <BzKpzA.3op@undergrad.math.waterloo.edu>
- > Newsgroups: comp.sys.amiga.advocacy
- >
- > > KEYBOARD GARAGE AND MULTIPLE SCREENS
- >
- > I don't know what a keyboard garage is,
- >
- > I'm not sure if you are talking hardware or software multiple screens,
- > but multiple screens is done on the Mac, and perhaps has been since
- > it's invention. It is also done on the PC for I don't know how long.
- > It's really not a monumental discovery.
- >
- > If you are talking software, the multiple screen is just an extension
- > of the virtual desktop concept.
-
- He's talking HARDWARE. The Amiga hardware allows for true, multiple
- screens, in a way thats different from any computer I have ever seen. On
- the Amiga, multiple screens are just that: Truly seperate screen areas:
- each with their own (possibly different) resolutions and colour depths,
- frame-buffer, windows, etc. They can all be "dragged" up and down, similar
- to the blackboards typical to science classrooms.
-
- The advantages are obvious: You dont have ALL your windows on one screen,
- getting in the way of each other; applications that open lots of windows
- can open their own screen to put them on. Applications that want lots of
- colours, or special resolutions, can get that with their own screen (and
- conversely, if you dont want a program to run on a slow 256 colour
- Workbench, it can open a very fast 4 colour screen).
-
- While we're at it, another somewhat related feature of Amiga screens is
- that they can be MUCH larger than the visible area - you could have, for
- instance, a 1280 x 800 virtual screen with only a 640 x 400 part visible.
- The screen will then scroll around automaticaly when the pointer reaches
- the bounds of the visible screen. The only limitation is memory - the
- chips can handle resolutions in excess of 32k x 32k (but you couldn't make
- a screen that large - it'd need 128 megs for B&W!). I don't know of any
- computer that has the stock ability to do this in hardware (I believe the
- common term for this is "hardware panning").
-
- -Dances With Coyotes - World's slowest programer-Given that God is infinate-
- -AKA Dances V2.0, Coyote, Critter, Magnet, Major-and that the universe is-
- -- Former Net-Lurker - YES, an AMIGA godammit! --also infinate, would you-
- --- Still limping along with AmigaOS 1.3 :( ---like a toasted tea cake?-
-
-
- --- Maximus 2.01wb
-