Byte vol.10 №3 March 1985

FEATURES
Introduction…………………………………………r………………96
Garcias Circuit Cellar:
Build the Touch-Tone Interactive Message System by Steve Ciarcia………….. 98
As a prelude to his major hcme-managementA:ontrcl system. Steve returns to the subject of DTMF decoding.
Factander by Markoff…………………….. t………………. 113 The first text database for the Macintosh uses a window-based interface and a MacWrite-style editor.
Arithmetic on Your PC by Peter Rice…………………………………….119
Overcome your PCs floating point decimal limitation with this BASIC program
Build a Serial Card by Robert Kong Win Chang………………………….. 129
You can put together an inexpensive serial card for the Sanyo MBC 550.
Two Flat-Display Technologies by Richard S. Shuford………………………130
Cas-plasma and electroluminescent displays may someday take the place of cathode-ray tubes.
Navigation: Putting the Microcomputer to Work at Sea by Frederic N. Rounds .141 The BASIC program described computes a ships geographic position based on two successive sextant readings.
A Unit-Conversion Algorithm by David L. Kahn…………………………….151
This simple program is table-driven and can be extended to include almost any unit of measure
THEMES
Introduction…………………………………………………………168
Build Your Dream Editor 6y Steve McMahon………………………………..171
The inexpensive programming editors discussed here are powerful and highly customizable.
The Commodore 64 80-Column Terminal
by John C Field Greg Richards, and Eric Beenfeldt ……………………….183
If you’ve got an EPROM programmer handy, build this modification for the Commodore 64.
The Kit Solution by Laine Stump………………………………………..193
The 8-MHz. 16-bit Slicer is at the heart of a low-cost computer system.
Public-Domain Gems by John Markoff and Ezra Shapiro………………………207
Bulletin-board systems and independent distributors offer a wealth of free and nearly free software for the IBM PC and the Apple Macintosh.
An XLISP Tutorial by David Betz ………………….. t, *………………221
This public-domain language lets you experiment with artificial intelligence.
Budget 3-D Graphics by Tom Clune……………………………………….240
Three-dimensional plotting can be easy and inexpensive with the SURF program.
REVIEWS
Introduction…………………………………………………………….242
Reviewer s Notebook by Glenn Hartwig……………………………………….245
The Altos 586 with the XENIX Development System by Greg Corson………………..247
A low-cost. UNIX-based microcomputer.
The NEC APC 111 by ]ohn D. Unger…………………………………………..256
A business computer with high-resolution color graphics.
Atari 800XL by loti Edwards………………………………………..267
An old friend has a new look
Dazzle Draw by Gregg Williams………………………………………277
Paint with 16 colors on an Apple lie or l28K-byte lie
The KoalaPad by Donald R. Osgood …………………………………. 283
One approach to making computers easy to use.
FriendlyWriter and FriendlySpeller by Steven D. Ryals…………………289
Inexpensive but limited word processing.
Tecmar s jrCaptain by Glenn Hartwig …………………………….. 299 A memory-expansion board for IBM’s PCjr.
Review Feedback………………………………………………. 303
Readers respond to previous reviews
KERNEL
Introduction ………………………………. ,………………………..311
Computing at Chaos Manor:
On the Road: Hackercon and COMDEX by lerry Pournelle……………….. 313 In a Jam-packed column, lerry describes the highlights—including one of the most interesting parties he’s attended-of these two meetings
Chaos Manor Mail conducted by lerry Pournelle ………………………………349
lerry’s readers write, and he replies
BYTE West Coast Up to Date by Jofttt Markoff. Phillip Robinson, and Ezra Shapiro . 355 A first-of-its-kind convention for computer hackers is detailed, as well as the new Graphics Environment Manager called “GEM” from DR
BYTE UK: Multitasking FORTH by Dick ftiuMfaiM. ……………………………..363
These multitasking systems, recently written In Great Britain, can be implemented on very small machines
BYTE Japan: A Sampler by William M. Raike ………………………… 375
Bill looks at TUrbo Pascal. IBM lapans IX. WordStar 2000. and some other new
Mathematical Recreations: Magic Squares by Robert T Kurosaka………………….383
The method described here lets you easily construct any odd-order magic squat
Circuit Cellar Feedback conducted by Steve Ciarcia………………………… 390
Steve answers project-related queries from readers
Editorial Another World: The 68000 .6
Microbytes……………………..9
Letters…………………….. .14
Fixes and Updates………………33
Whats New…………………39. 435
Ask BYTE………………………48
Clubs & Newsletters…………….58
Rnntc Rfuifws………………….65
Event Queue………………….. 83
Programming Insights……. 396, 404
Application Nofe………………412
Books Received………………..418
Unclassified Ads………………493
BYTE s Ongoing Monitor Box
BOMB Results………………….494
Reader Service………………….495