Byte vol.10 №6 June 1985

FEATURES
Introduction……………………………………………………………106
Interactive Audio in a Videodisc System by lofin Lawler. Pau! Hairsine, and Albert E. Miller………………………..108
The tool described consists of a microcomputer, a touch-sensitive display, and an external audio box that’s computer-controlled.
Ciarcias Circuit Cellar: Build the Home Run Control System.
Part 3: The Software by Sieve Ciarcia……………………………………..121
In this final part Of his home-control system. Steve describes the software and demonstrates a schedule entry.
SALT by Samuel D. Fenster and Lincoln E. Ford ……………………………..147
SALT is a reinvention of the threaded interpretive language in which assembly-language routines can be used in a single CALL statement from BASIC
The SUM: An Al Coprocessor by Phillip Robinson…………………………… <69
This coprocessor is intended for computers geared toward Al programming.
Inside AppleTalk by David Ushijima………………………………………..185
Apple’s new local-area network is designed to let Apple and non-Apple products communicate and share information and resources.
The Expert Mechanic by Michael Fichtelman………………………………….205
Expert systems needn’t be esoteric or waste resources.
Switch by Werner F. Grunbaum……………………………………………..221
Use color and monochrome monitors simultaneously on your IBM PC
Twos-Complement Numbers Revisited by Gary Bronson and Karl Lyon………………228
A value box helps simplify the conversion of positive numbers from binary to decimal form.
THEMES
— _ -j
Introduction……………………………………………………………232
Choosing a Programming Language by Gary Elfring…………………………….235
It’s a three-step process.
Structuring BASIC by Arthur Huston………………………………………..243
Compensate for some of the languages shortcomings with a library of subroutines.
Subroutine Libraries in Pascal by Bruce Webster…………………………….253
The author presents a look at some of the facilities available for developing these libraries.
Using Data Flow for Application Development by Wayne P. Stevens………………267
This form of linkage results in functions that are easier to understand develop, and maintain Debugging Techniques by Gregg Williams…………………………………….279
There are no magic formulas, but there are tools and the most powerful one is your own brain.
6502 Tricks and Traps by Joe Holt…………………………………………295
A programmer offers tips for surviving 6502 assembly-language programming. Software-ICs by Lamar Ledbetter and Brad Cox……………………………….307
Productivity Products International offers a plan for building reusable software components.
REVIEWS
Introduction …………………… ,…. *…………………….320
Reviewers Notebook by Glenn Hartwig……………………………. 323
The Mindset Personal Computer by Tom Wadtow…………………………………….324
A machine that works like an IBM PC but adds CAD/CAM-inspIred graphics capabilities Idea Processors by William Hershey…………………………………………….337
Four packages for organizing text and thoughts.
Convenience Software by Mark |. Welch……………………………………….. 353
A comparative review of pop-up programs.
Building Expert Systems with M.l by Bruce DAmbrosio……………………………..371
A knowledge-engineering tool that’s part software, part seminar. Hewlett-Packard s HP 7475A Plotter by Ricfi Malloy………………………………379
A six-pen graphics machine.
The IBM Quiet writer Printer by Jon R. Edwards ……………………………. ,385
A letter-quality printer that uses thermal-transfer technology.
The Word Plus by George Sheldon …………. . ………………………………..393
Software that checks your spelling.
Review Feedback……………………………………………………………..401
Readers respond to previous reviews.
KERNEL
Introduction………………………………………………………………406
Computing at Chaos Manor: From the Living Room by lerry Pournelle……………….409
Complete chaos at the Manor causes lerry to escape to New York, but he still finds time to visit shows and look at new products.
Chaos Manor Mail conducted by Jerry Pournelle …………………………….. 435
terry’s readers write, and he replies.
BYTE U.K.: Telephone Computers by Dick Pountain……………………………….439
The One Per Desk is a personal computer with built-in telephone hardware, tightly integrated telecommunications software, and general-purpose desktop computer facilities
BYTE Jawkn: New NECs and a Cartridge Disk by William M. Raifce………………….451
Our Japan reporter tells about three new microcomputers from NEC. a cartridge hard-disk system from Tbmas Electronics, and Japan s use of public video-display units as shoppers’ directories
BYTE West Coast: A GEM Seminar by John Markoff and Phillip Robinson……………..455
Our Utest Coast correspondents report on DR’s seminar to teach programmers to adapt their software to the GEM environment and on MacNosy and advances in disk-controller technology.
Circuit Cellar Feedback conducted by Steve Ciarcia………………………….. 461
Steve answers project-related queries from readers.
BYTELINES conducted by Sol Libes…………………………………………….468
Editorial:
The BYTE Information Exchange … 6
Microbytes…………………..9
Letters ………………….. 14
Fixes and Updates……………33
Whats New ………………39, 470
Ask BYTE……………………48
Clubs & Newsletters………….58
Book Reviews………………….65
Event Queue…………………..86
Books Received ……………..465
Unclassified Ads…………….525
BYTE’s Ongoing Monitor Box. BOMB Results………………..526
Reader Service………………527