July 1989 MAGazine Volume 5 Number 7

Table Of Contents

CALENDAR OF EVENTS - JULY 1989

Saturday, July 8, 1989 - 1:00 PM - the General Meeting will be held in the Parrish Building, Room #7, which is east of Jenning's Hall on the campus of State Technical Institute of Memphis. We will discuss topics of general interest to the group. Todd Rooks will continue his lessons about the CLI.

FROM THE PRESIDENT'S KEYBOARD

By Broadus Weatherall

Hello, again, and I hope everyone is finding fun, optional things to do during the current monsoon season. JoAnne tells me its summer out there, but I don't believe it. Summer is HOT and DRY, and good weather to play GOLF. Oh, well, good thing I have Mean 18, and Leader Board, .. not the same as the real thing, though..

Those of you at the last meeting saw the LARGE AMIGA banner that had been given to the club by Computer Connections, Inc. in Southaven. Terry Campbell brought it in for us. Thanks Terry, and thank Paul Warmath for us.

At the last meeting, we found that there was a lot of confusion over what prices were for what disks, so here's the new price structure.... If the disk has something on it (the MAG disks or Fred Fish disks) they are $2.00 each, if they are blank disks they are $1.00 each. These prices are, of course, for members only.

Everyone might want to be sure to make the next meeting and see the farewell performance of Dr. Demo (Rick says he will be leaving for North Carolina about the end of the month). I don't think the meetings will be quite the same without him. And that could leave a big hole in the meetings unless we find a volunteer to fill his disks. In fact, it might take several folks to replace him.

There is a THINKER demo on the DUCK POND you might try to take a look at, it is an idea processor that allows cross-referencing articles and pictures. Mike Wallace has the program and said last meeting that he could show several of the features and maybe answer any questions.

MAGazine

Memphis Amiga Group
Box 17426
Memphis, TN 38187

MAGazine is published monthly by the Memphis Amiga Group (NAG), a nonprofit organization offering assistance to fellow Amiga owners and those interested in the Amiga. Membership in the Memphis Amiga Group is available for an annual fee of $20 per family. Memphis Amiga Group officers for 1989 are:

PRESIDENT
Broadus Weatherall
(901) 767-9239

VICE PRESIDENT
Todd Rooks
(901) 373-0198

SECRETARY/TREASURER
Charles Williams
(501) 655-8777

LIBRARIAN
Bill Bowers
(901) 756-8196

MAGazine EDITORS
Sean & John Kiss
(901) 365-1244

COMING: HIGH-POWER CAD AT A LOW PRICE

Reprint from MACHINE DESIGN April 20, 1989

By now, most engineers know that big CAD programs need a lot of computer power. Many experts in finite-element modeling, for example, say that useful finite-element analysis is practical only on the most powerful PCs. Machines in this category usually are capable of performing 32-bit operations, and are equipped with at least a megabyte of main memory and high-resolution, animated, color graphics. Unfortunately, such capabilities often cost $7,000 to $10,000.

However, engineers may soon find a new, low-cost platform for running high- performance CAD packages. A mere $4,692 now brings a machine equipped with a 40Mbyte hard disk, 32-bit processor, math coprocessor, 1M byte of RAM, and special chips that provide high-resolution, animated, color graphics. What's more, the computer will run under Unix sometime this year, allowing it to use the huge library of engineering software written for that operating system.

The machine providing these features comes from a company not usually thought of as a supplier of serious business-oriented hardware. The computer is the Amiga 2500 by Commodore International Ltd.

The powers of the Amiga 2500 are a well-kept secret, though the 2500 has been available for several months. Since their introduction six years ago, Amigas have not received nearly the publicity given other machines. One reason is that Commodore has had financial problems (which appear to be over now). In addition, the Amiga received little attention because it was originally targeted for the home, rather than as a business computer.

Amiga outlets also are few and far between, making it tough to get information from dealers. For example, the Cleveland Yellow Pages lists several dozen distributors for Pc-compatible and Apple computers, but just one Amiga dealer.

With the introduction of the 2500, these factors are changing. Commodore is signing up more sales outlets, which should make the Amiga easier to obtain. And features on the 2500 are aimed squarely at academic and technical users. The machine contains a 68020 processor working at 14.3 MHz. Commodore is also extending Unix so that software running under that operating system can use Amiga graphics hardware designed for animation.

The 2500 also runs MS DOS software by means of an optional addin board containing an 80286 processor. The combination of vivid graphics and MS DOS compatibility are impressive, according to some who have operated the machine. For example, the 2500 can transform line drawings created with AutoCad into shaded, realistic images in just a few minutes. Rendered 3D images can then be animated on the computer's screen to perform tricks such as spinning on an axis in continuous motion.

Conventional drafting operations promise to be much improved on the 2500 as well. Its special graphics chips take over operations, such as pan and zoom, normally done in software. This can speed up the drawing process dramatically, sources say.

Commodore also is developing an add-in board that could boost the 2500's computing power. The board contains a special kind of 32-bit coprocessor called a transputer. Transputer boards from Commodore will run at either 15 or 20 MHz. They will include 2k to 4k of fast (50 ns) RAM. A single board will process about 10 million instructions per second (mips) and 1.2 million floating-point operations per second (mflops).

However, several such boards can operate in parallel on a single 2500 chassis, theoretically providing hundreds of mips. Commodore expects applications for transputer-equipped Amigas to range from artificial intelligence and distributed databases to image processing and rendering.

Amigas have acquired a reputation for high-quality graphics among illustrators and those in the graphic arts. Commodore plans more products in this area. One of note is called a Professional Video Adaptor. It basically allows Amiga graphics to be combined with images from a video camera or VCR. The combined image can be sent to the Amiga monitor or video tape.

The Amiga 2500 is available now from distributors that include Computerland, Computerware, and Electronics Boutique. Unix for the machine is now in beta testing. The add-in board that provides an 80286 for running MS DOS software is called the A2286D Bridgeboard and is available now. Transputer boards are still in development and have yet to enter the testing phase.

Leland Teschler

A Theory of Mind

Aristotle in his De Anima described mind in Greek as "the first entelechy of a body potentially having life."

Mentifex Systems has studied the brain and the mind in the manner and tradition of an ancient philosopher - eclectically and with a driving thirst for knowledge and enlightenment. The result is a uniquely original theory of mind (theory - from the Greek ---, a way of looking at things).

At Mentifex we have used the tools of logic and linguistics to look at the mind as a black box, an ignotum quid, something unknown. We looked for fourteen years before we could cry --- - eureka.

What we found in our heuristics was a way of tying it all together, of banishing the homunculus and of tracing out the flows of information in a mind.

Meanwhile, the technology of neural nets has come up alongside us. We believe that we have something to offer you who have advanced the state of the art in neural nets. Our Mentifex design is an a priori neural network design, based as it is upon the preliminary groundwork of Eccles and of Hubel and Wiesel, and upon the linguistics of Chomsky. But we have left the terra firma of proven research and of demonstrable results in our headlong rush to arrive at a comprehensive theory of mind, a working paradigm for the construction of an artificial intelligence.

An unexamined mind-model is not worth having. Please write and ask for the details of our design, and then examine it. Our resources are too limited to develop the design, while you perhaps have the resources but no algorithm.

We especially wish to share our thoughts with fellow eccentrics, with non- conforming free-thinking individuals engaged in speculations similar to our own. If you are open to new ideas and curious about ---, please make contact.

The superficial figure depicted above only hints at the full depth of our mind-model. Before we could cry "---", our system-diagram was much more complicated - and wrong. The closer we approached to our present theory of mind, the simpler and more compelling our synthesis became. Probably it is still wrong, but we would like to share it with you nonetheless. Pick it full of holes and free us of our delusion of being mentifices - mindmakers.

If you don't like to write away for things and you would prefer to judge the Mentifex mind-model solely on the basis of information already at hand, here are the crucial details from which you can perhaps reconstruct the design in your own image.

An advancing front of consciousness moves slowly down the lifelong memory channels depicted here. Each fleeting moment of the present has its own vast neural net woven across the mindgrid. The abstract central core of the mind imparts a time-dimension to the massively parallel network. Within that abstract core, hierarchical grammar structures arise to control a vocabulary of words, or symbols, deposited over time as engrains in the auditory memory channel. Whether the engrams are stored as holograms or as synaptic conjunctions or as interference patterns, the Chomskyan grammar rules still hold sway over the associative meanderings of conceptual information in the mind.

Vision is accounted for through the feature extraction of Hubel and Wiesel, but, since vision is superfluous to an intelligent human mind, you are not permitted to debunk the Mentifex paradigm on the basis of a faulty subsystem for vision.

Motor control is discussed extensively in the documents which are yours for the asking, but, since locomotion is more of the body than of the mind, a repudiation of the provisions for motor behavior will not collapse the mentifical edifice.

Language is the central theater of this theory of mind. If you can debunk or disprove our observations about language, then we doff our Chomskyan hats to you and we thank you for setting us back upon our philosophic quest in search of an answer to the ancient imperative: --- - "Know Thyself!"

THINKER

Reviewed by Mike Wallace

Every once in a while, a great software product hits the market but does not get the recognition it deserves. Thinker, by Poor Person Software, is one of these products that will astound you. Thinker provides the Amiga user many of the capabilities that HyperCard gave to the Macintosh user.

Thinker is an Idea Processor combining the elements of text processing, outline processing, and hypertext. Hypertext is an indexing method that links character strings (any word or group of words) to other sections of text in the program. This means it is conceiv- able, but not practical, that every word in a THINKER document could point to another section of text in the document. Besides link- ing to sections of text in the document, THINKER can link to another THINKER document, an IFF picture file, and/or any WORKBENCH application that can be run as a separate task.

THINKER comes with a 52 page REFERENCE manual, not a user manual. But the EXAMPLE tutorial, that comes on the disk, will walk you through the features of THINKER. The software provides a very good user interface for 'navigating' through the document. The navigation interface consists of pull- down menus, mouse position- ing / option selection, or commands entered through the keyboard. Once you start 'navigating' through the document, you will be amazed.

The THINKER editor is a very much like any standard word processor. Besides normal keyboard input and cursor movement, the editor allows: cut, copy, paste, search / replace, and search next. The real power is realized when the hier- archial text processor is used. The hierarchial text processor allows the user to break down topics to sub- topics, subtopics to sub- subtopics, and etc. The commands supported by the hierarchial text processor are: Insert, Move, Copy, and Delete. The ability to move a major topic and have all sub-topics under it be moved is great. Be careful of the delete command, if you delete a major topic, all sub-topics under the topic will be deleted.

THINKER also has a spelling checker that makes use of an external lexicon file. This dictionary contains about 33,000 words. You can add words to the dictionary, but the documentation states that the dictionary should not contain more than 40,000 words.

I could go on and on about what I like about this soft- ware product, but you have to make a determination if you see benefits to using the software. If you are still unsure about this product, please get a copy of the demo. The. demo is a full function version of THINKER without any SAVE or PRINT functions. I got a copy of THINKERDEMO 1.-2 from a Bulletin Board. Poor Person Software is offering THINKERDEM01.3 for $5.00. I believe this type of Hyper- Media is the way of the future for text processing. Only time will tell...

FINANCIAL REPORT

By Charles Williams

Balance from report in June issue of MAGazine: $273.41
INCOME:
Memberships (new) 40.00
Memberships (renewals) 40.00
Disk of the Month sub. 10.00
MAG & FF disk sales 40.00
Blank disk sales 56.00
Digi-View rental fees 28.00
Misc. Income 4.50
TOTAL INCOME: $218.50
EXPENSES:
Newsletter & Postage 33.61
Money Order .50
Fred Fish disk orders 20.00
People Link 18.00
Surge Suppressor 13.96
Extension cord 6.38
Misc. expenses 3.00
TOTAL EXPENSES: $ 95.45
FINAL BALANCE: $396.46

Memphis Amiga Group Membership list as of June 25, 1989

***** Please pay dues by the SECOND SATURDAY of the month on your EXPIRE date *****
You may pay dues by mail by sending your $20 check made out to Memphis Amiga Group
to MAG dues, c/o Charles Williams, 13 Lake Drive, Wilson, AR 72395

LAST NAME FIRST NAME CITY ST ZIP EXPIRE
Andrews Freddie L. Memphis TN 38128 MAY 90
Bath David T. Memphis TN 38112 FEB 90
Bilson Edward Memphis TN 38115 JAN 90
Bowers William Memphis TN 38119 MAY 90
Breu Joe Memphis TN 38115 AUG 89
Branan Daisy Memphis TN 38111 NOV 89
Buford Matt Bartlett TN 38134 JUN 90
Burford Tim Southaven MS 38671 FEB 90
Burns Keith Cordova TN 38018 SEP 89
Campbell Terry A. Horn Lake MS 38637 AUG 89
Chapman Walter T. Drummonds TN 38023 JAN 90
Chiego John Memphis TN 38119 FEB 90
Clay Lonnie C. Memphis TN 38111 JAN 90
Coffman Shane Cordova TN 38018 MAR 90
Coleman Tom Oxford MS 38655 MAR 90
Crichton Robert H., Jr. Millington TN 38053 SEP 89
Davenport Marshall Memphis TN 38127 OCT 89
Davidson Al Memphis TN 38125 AUG 89
Davis Ray Memphis TN 38128 APR 90
Dodson Luciano Memphis TN 38115 APR 90
Doss Leonard & Mary Ann Memphis TN 38119 AUG 89
Echols Steve Memphis TN 38116 DEC 89
Garavelli Dr. John S. Memphis TN 38181 JUN 90
Ginn Raymond Memphis TN 38127 DEC 89
Goff Robert Memphis TN 38134 FEB 90
Gray Bobby,Vickie,Terri Brighton TN 38011 MAY 90
Grimes Tim McLemoresville TN 38235 NOV 89
Harruff Richard Cordova TN 38018 AUG 89
Harvey Eugene Memphis TN 38126 JAN 90
Helm Robert Memphis TN 38107 JAN 90
Hoffman Dr. Walter K. Memphis TN 38122 AUG 89
Hooker Bill Memphis TN 38134 NOV 89
Hudson Scott Memphis TN 38115 JUN 90
Jefferson Tom Bartlett TN 38134 NOV 89
Jenkins Andy D. Bartlett TN 38134 DEC 89
Jennings Ron Carson CA 90746 MAY 90
Jesmer Jerry Chalmette LA 70043 SEP 89
Johnson Richard Memphis TN 38127 SEP 89
Jones Tom Memphis TN 38128 AUG 89
Kane Brian Memphis TN 38128 APR 90
Karpov Victor Memphis TN 38115 OCT 89
King Guy O., Jr. Collierville TN 38017 DEC 89
Kiss John & Sean Memphis TN 38118 FEB 90
Kligel Joe Fairhaven MA 02719 SEP 89
Lendennie Dianne Collierville TN 38017 DEC 89
Limer Walter E. Millington TN 38053 MAR 90
Lockard Don Alamo TN 38001 AUG 89
Moore Calvin B. Memphis TN 38118 JUN 90
Morris Eugene West Memphis AR 72301 APR 90
Norman Joe R. Dyersburg TN 38024 JAN 90
Porter Sharon Memphis TN 38109 JAN 90
Robbins Dr. James Mobile AL 36695 JAN 90
Rooks Todd Memphis TN 38128 MAY 90
Russell Shane Memphis TN 38134 JUL 89
Sanders Joe Memphis TN 38134 DEC 89
Schwartz Dr. Alan Memphis TN 38187 AUG 89
Shiflett James T. Millington TN 38053 MAY 90
Spain David Bartlett TN 38135 NOV 89
Vineyard Charles W. Memphis TN 38118 AUG 89
Wade Norman Memphis TN 38104 JAN 90
Wallace Michael S. Marlon AR 72364 SEP 89
Walp Len Memphis TN 38128 DEC 89
Weatherall Broadus & JoAnne Memphis TN 38111 JAN 90
Williams Charles Wilson AR 72395 AUG 89
Willis Mark Bartlett TN 38135 APR 90
Winfield Kenneth Memphis TN 38128 DEC 89

The DUCK Pond BSS - UP TO 2400 BPS - (24 hours)
Memphis, TN (901) 761-3729 "ask for Dewey"
Birmingham, AL (205) 822-0956 "ask for Howard"

For MAG Hardware Rental & MAG S9ftware Orders
call Bill Bowers at (901) 756-8196

Special Interest Group Chairpersons
John & Sean Kiss . . . . Sound
John & Sean Kiss . . . . Business
Keith Burns . . . . . Hardware
Todd Rooks . . . . . New Users

NEW FISH DISKS 211-220 ADDED TO LIBRARY

We recently received Fred Fish disks 211 through 220. If you are interested in copies of any of these disks, call Bill Bowers at (901) 756-8196. If you want your order delivered at the upcoming general meeting, please give Bill sufficient time to make the copies. Call now and order early so you won't have to wait. The price is only $2 per disk and below is a listing of what's on FF #211-220.

CONTENTS OF DISK 211

AmigaWave: This is Allen's entry to the 1988 Badge Killer Demo Contest. It is an animation with sound effects. Author: Allen Hastings.

Esperanto: A keymap modification to usal which, in conjunction with the supplied slate.font, will allow one to type in Esperanto and Welsh, in any program that will use keymaps and fonts. Author: Glyn Gowing.

Image-Ed: An shareware icon editor submitted by the author for inclusion in the library. Suggested shareware donation of $20. Version 1.9, binary only. Fixes a serious bug in the 1.8 version on disk 204. Author: Jonathan Potter.

SignFont: A keymap and font that will allow the user to be able to type in American Sign Language, providedthatone knows the font. Author: Glyn Gowing.

VirusControl: A new virus detection and control program that checks disks during insertion, protects from link viruses, shows bootblock on a screen, periodically checks system vectors, controls access to files with a requester, etc. Version 1.3, includes full assembly language source code. Author: Pius Nippgen.

CONTENTS OF DISK 212

Alice: This animation is Carey's entry to the 1988 Badge Killer Demo Contest. Author: Carey T. Pelto.

DiskSalv: A disk recovery program for all Amiga file system devices that use either the Amiga Standard File System or the Amiga Fast File System. Disksalv creates a new filesystem structure on another device, with as much data salvaged from the original device as possible. This is an update to the version released on disk 177. Binary only. Author: Dave Haynie.

DogsWorld: This animation is Charles' entry to the 1988 Badge Killer Demo Contest. Author: Charles Voner.

CONTENTS OF DISK 213

Cucug: This animation of the Champaign-Urbana Commodore Users Group logo was submitted to the 1988 Badge Killer Demo Contest by Ed Serbe. Author: Ed Serbe.

Icons: Almost 300 icons in eight (I) colors. Uses a special program to get an eight color workbench to display these icons, which were made with DPaintll and IconGen. Most icons are miniatures of the main screen of their corresponding programs, or the picture they show, made with "iconize" and "recolor" from disk 85. Author: Wolf-Peter Dehnick.

CONTENTS OF DISK 214

ArcPrep: ArcPrep prepares files and/or directories for archival with arc or any other program that can't scan through different directories and/or handle long filenames. Version 2.1, includes source. Author: Garry Glendown.

MandelVroom: A Mandelbrot/Julia-curve generating program that features five numerical generators (integer, ffp, ieee, 020, and 020/881) in hand-crafted assembly for maximum speed, online mouse selectable help for all functions, generation of multiple pictures simultaneously, a sophisticated user interface with shaded gadgets, etc. Some of the other features include zoom, magnify, color-cycling, contouring, auto-contouring, histogram, statistics, presets, extra-halfbrite support, overscan, orbits, pan mode, and more. Requires 1 Mb or more of memory. This is the source to version 2.0, an update to the version on disk 78. A compiled binary, along with help files and example images, can be found on disk 215. Author: Kevin Clague.

MemDiag: A memory diagnostic program to identify addresses which produce memory errors, and a memory quarantine program which removes such defective addresses from the system's free memory list, until such time as the hardware errors can be corrected. Version 1.1, includes source. Author: Fabbian Dufoe.

RunBack: Another step in the evolution of Rob Peck's RunBackGround program from disks 73 and 152. Allows you to start a new CLI program and run it in the background, then closes the new CLI. This version has been enhanced to use the NULL: device by Gunnar Nordmark (included), which is a "real" device, so it solves problems with previousversions of RunBack which used the Nil: "fake" device, causing many crashes. Includes source. Author: Rob Peck, Daniel Barrett, Tim Maffett.

SmartIcon: This shareware program, submitted by the author, is an Intuition objects iconifier. Version 1.0 is limited to iconifying windows, which is still very handy. It adds a new "iconify gadget" to each window, that when clicked on, iconifies the window into an icon in the ram: disk. This is the same version as released on disk 134, but now includes the source code. Author: Gauthier Groult.

CONTENTS OF DISK 215

MandelVroom: A Mandelbrot/Julia-curve generating program that features five numerical generators (integer, ffp, ieee, 020, and 020/881) in hand-crafted assembly for maximum speed, online mouse selectable help for all functions, generation of multiple pictures simultaneously, a sophisticated user interface with shaded gadgets, etc. Some of the other features include zoom, magnify, color-cycling, contouring, auto-contouring, histogram, statistics, presets, extra-halfbrite support, overscan, orbits, pan mode, and more. Requires 1Mb or more of memory. This is version 2.0, an update to the version on disk 78. Source is available on disk 214. Author: Kevin Clague.

CONTENTS OF DISK 216

BackDrop: Backdrop allows you to define a pattern which will then be displayed on the workbench screen in the normally empty area behind all the windows. Similar in concept to DropCloth, but this one does not require workbench to be loaded (and does not cohabit very well with workbench). Includes source. Author: Eddy Carroll.

C64Emul: An April Fools spoof that turns your Amiga into a C64, or at least makes It look that way. Includes source. Author: Eddy Carroll.

Cloud: A program that generates and displays fractal surfaces that look remarkably like clouds. Based on ideas from the book "Fractals" by Jens Feder. Binary only. Author: Mike Hall.

PrtSpool: A DOS handler, a print program, and a control program that implement a print spooling system. Like PRT:, the DOS handler waits for stuff to be sent to it to be printed. The print program does line numbering and page headers. The control program handles administrative functions. Binary only. Author: Daniel Barrens.

VirusX: Version 3.20 of the popular virus detection/vaccination program. Features a test for 8 new viruses since the 3.10 version on disk 175. Includes source. Author: Steve Tibbett.

Wanderer: A neat little game with graphics and sound, ported from the Unix version, originally written on a Sun workstation. The idea for Wanderer came from games such as Boulderdash, Xor, and the Repton games from Superior Software. Includes a built-in editor for extending the game by adding additional screens. Version 2.2, includes source. Author: Steven Shipway and others. Amiga port by Alan Bland.

CONTENTS OF DISK 217

AntiCBS: An animation cooked up by Leo in protest of CBS's coverage of the Hacker's Conference in Oct 88. After reading the transcript I was angered enough to feel this needed widespread distribution, even though it is quite old. Author: Leo 'Bois Ewhac' Schwab.

Echo: A small replacement for the AmigaDOS echo that will do some special functions, such as clear the screen, delete to bottom of screen, scroll the screen, place the cursor at a particular location, and set the text style and/or color. Includes source. Author: Garry Glendown.

InstallBeep: This program replaces the DisplayBeep function so that an IFF 8SVX sound is played instead of the screen flashing. The PlayBeep function runs as a task in the background and runs asynchronously so the length of the sound does not slow anything down. Includes a couple of sample sound files. Version 1.1, binary only. Author: Tim Friest and Don Withey.

Sniplt: An input handler wedge which allows you to clip text from any window and then paste that text anywhere, as though you had typed it on the keyboard. You mark the text you want to "snip" using the mouse, and then use the mouse to "paste" the last snipped text into the active window, requester, or anywhere. Version 1.2, includes source. Author: Scott Evernden.

SonixPeek: A utility to let you list all the instruments used by one or more Aegis Sonix score files. It can scan individual files, or search one or more directories, checking all score files in each directory. The output is a list of all the instruments you need to have present in order to be able to play the indicated score files. Includes source. Author: Eddy Carroll.

Stevie: A public domain clone of the UNIX 'vi' editor. Supports window-sizing, arrow keys, and the help key. Version 3.6, includes source. This Is an update to version 3.35a on disk 197. Author: Various, Amiga work by G. R. (Fred) Walter.

CONTENTS OF DISK 218

EdLib: A library of additional functions for Manx. This is version 1.1, an update to version 1.0 from disk 183. Includes source. Author: Edwin Hoogerbeets with C-functions from several different authors

Mandel: Another mandelbrot generator program, with bits and pieces of code from C. Heath and R.J. Mical. This is version 1.3, an update to the version on disk 111. New features and improvements include an ARexx interface, coordinates in sight, more state info saved with a picture, batch files, programmable functions, and more plotting options. Includes source. Author: Olaf Seibert,

Maze: A program that lets you build mazes and then solve them. Mazes can be trivial one level mazes to very difficult three level mazes. Version 1.2, includes source. Author: Todd Lewis.

PcPatch: Patches for PCCopy and PCFormat from the EXTRAS disk, to allow reading, writing, and formatting of any kind of MS-Dos style disks, including 720K 3.5" diskettes. Binary only. This is an update to the version on disk 163. Author: Werner Guenther.

Scanner: Scanner makes commented C code of all intuition structures in memory. The structures will receive correct pointers towards each other. Scanner starts looking at IntuitionBase, and follows all pointers, storing them in memory. When finished, it writes all the structures to the standard output. Version 1.0, includes source. Author: Stefan Parmark.

Worm: An Amiga implementation of the classic "worms" program, based on an article in the Dec 1987 issue of Scientific American. You can specify the size and length of the worms, and the number of worms. Includes source. Author: Brad Taylor, Amiga port by Chuck McManis.

CONTENTS OF DISK 219

DeepSky: A database containing information on 10,368 non-stellar objects, 600 color contrasting easily resolved double stars, 70 stars for setting circles, and misc white dwarfs, red stars, binaries, etc. The database is distributed in zoo format, and is about 1.2 Mb after extraction. Version 5.0. Author: Saguaro Astronomy Club.

Mv: A Unix style mv/cp/rm program that moves, copies, or removes files. Includes interactive mode, recursive mode, and force quiet mode. Copies file permissions, dates, and comments, supports arp style wildcards, supports moves across volumes, honors the delete bit. Version 1.1, includes source. Author: Edwin Hoogerbeets.

CONTENTS OF DISK 220

DNet: A link protocol that provides essentially an unlimited number of reliable connections between processes on two machines, where each end of the link can be either an Amiga or a Unix (BSD4.3) machine. Works on the Amiga with any EXEC device that looks like the serial.device. Works on UNIX with tty and socket devices. Achieves better than 95% average throughput on file transfers. This is version 2.0, an update to version 1.20 released on disk 145. Includes sources for both the Amiga and Unix versions. Author: Matt Dillon.