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Aucbvax.3225 fa.works utzoo!decvax!ucbvax!works Mon Sep 21 02:11:42 1981 WorkS Digest V1 #17 >From DUFFEY@MIT-AI Mon Sep 21 02:01:33 1981

WorkS Digest Mon, 21 Sep 1981 Volume 1 : Issue 17

Today's Topics: Query - Cell graphics algorithms, Book - Audience and objectives, Workstations - MicroDaSys 68000, Input Devices - TASA touchpanel & Apple mice ----------------------------------------------------------------------

Date: 20 Sep 1981 (Sunday) 0941-EDT From: DREIFU at WHARTON-10 (Henry Dreifus) Subject: Call for information, forwarded request

[Begin forwarded messages]

Date: 19 Sep 1981 2317-PDT From: William "Chops" Westfield <BILLW SRI-KL AT> Subject: Need algorithms for Cell-organized graphics displays

Does anyone have references for graphics algorithms (line drawing, polygon filling, etc) that have been optimized for use with subcell style graphics display (such as some terminals and many micros have)? I know Barrett & Jordan have some articles in CACM (march,feb 1974) (I haven't read them yet). Are there any others written since then?

Thanks Bill W

[End forwarded messages]

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Date: 20 Sep 1981 (Sunday) 1004-EDT From: DREIFU at WHARTON-10 (Henry Dreifus) Subject: Book.

The general opinion is to gear this book to the technical market- place, the educational as well? I am not that high on having a loose leaf type book, but that could be for the second volume, an update service on all the new machines that are around.

I would be interested in what one would want to see in a book such as this describing personal workstations, what sorts of things should be stressed and so forth.

Hank

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Date: 21 September 1981 02:50-EDT From: Patrick G. Sobalvarro <PGS AT MIT-AI> Subject: Workstations - MicroDaSys 68000

There is a company in California called MicroDaSys, which claimed in the latest issue of EDN to be selling a 68000 Unix system that looks too good (and cheap) to be true. Two 12mhz 68000s (one for virtual memory management, with demand paging), and a 6809 for interrupt-driven I/O. Comes with 6 RS232 ports, running at up to 500k baud, and 4 parallel ports, with handshaking.

A multiuser system comes with 512k bytes of RAM in a 16M-byte virtual space, 40M bytes of Winchester storage, and V7 Unix. All for less than $20K.

Does anyone have any experience with these folks? Are they delivering?

-pgs

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Date: 19 Sep 1981 (Saturday) 2337-EDT From: DREIFU at WHARTON-10 (Henry Dreifus) Subject: Touch Panels: TASA

Product: Touch-Panel, x-y positioning Price: $400.00 quantity 1, $150.00 in mass Model: X-Y 3600 Principle: Capacitive Sensing, look at Xrx860 abortion 60x60 steps in square surface 5"x5".

Probably useful in augmenting user work-effectiveness. Address: Touch Activated Switch Arrays, Inc. 2346 Walsh Avenue, Santa Clara California, 95051 (408) 727-8272 Contact: Bob Abler, manager of marketing.

I'd be interested if there is a demonstrated use for touch panels that are not a part of the screen, and if they have the ability to be used for Office Automation? What also does one need from a touch panel? More x-y points ?

Hank

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Date: 19 Sep 1981 1806-PDT From: Mike Leavitt <LEAVITT USC-ISI AT> Subject: Mice for Apples

Does anyone know of anyone who sells Mouses for Apples? I presume they should plug into the game socket, and work like a joystick plus the three button sensors. A couple of micro- switches on the side would be nice to determine which of the paddle controls would be activated.

Mike

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