Byte vol.6 №2 February 1981

Features
36 An Extremely Low-Cost Computer Voice Response System by James C Anderson / infinite dipping produces acceptable computer speech.
44 A Computer-Controlled Tank by Steve Ciarcia / A wireless remote-control link to a personal computer enhances Milton-Bradley’s Big Trak.
68 A Beginner’s Guide to Spectral Analysis, Part 1 by Mark Zimmermann / A nonmathemaocal treatment of Fourier transforms.
106 A Pascal Library Unit for the Micromodem
Il by Thomas H Woteki I Pascal routines which allow the Apple to perform mass-transfer and processing of files via the Micromodem II.
142 Dynamic Memory: Making an Intelligent Decision by Larry Malakoff I Dynamic memory boards can have one-sixth the power and half the space of static types, but these advantages are useless if the board doesn’t work.
152 Stacking Strings In FORTH by John Cassady / A set of “words” for the FORTH vocabulary adds string-handling capabilities to the language.
164 Articulate Automata by Kathryn Fons and Tim Gargagliano / A look at the physiology of speech and at how the electronic equivalent of the human vocal tract (the voice synches/zer) is programmed.
220 Image Processing With a Printer by Clark A Calkins / With this simple system a little hardware goes a long way in processing and printing images.
312 A/D and D/A Conversion — An Inexpensive Approach by Roger W Mikel / This fast converter requires a minimum of parts and supplies 8 bits of resolution over a 5 V range.
318 Turn Your COSMAC VIP into a Frequency Counter by Andrew Modla I Display frequencies in the range of I to 11.004 Hz on your COSMAC computer.
326 A Heating and Cooling Management System by Tom Hall I How to build a remote temperature sensor.
332 Modifying the SwTPC Computer by Thomas J Weaver / Modifying the SwTPC 6800 computer to accept either the 6800 or 6809 processor board.
Reviews
30 Radio Shack’s Daisy Wheel Printer II
by Yvon Kolya
96 Infinite BASIC and Infinite Business
by Scott Mitchell
202 IRV, a TRS-80 Utility Program by Teri Li
253 The Heath H-14 Printer by Bradford Rehm
262 Zork, The Great Underground Empire
by Bob Liddil
Nucleus
6 Editorial: Computer Speech: An Update
16 Letters
92, 266, 271, 325 Programming Quickies
94, 102, 290, 309 BYTE’S Bits
138, 188, 196, Technical Forum: Recording with Current; Nonlinearities in Illumination: Build a Null Modem
212 BYTELINES
274 Education Forum: Microcomputers in the Chemistry Lab
280 Ask BYTE
288 System Notes
289 Software Received
292 Books Received
294 Gubs and Newsletters
298 Event Queue
304 Book Reviews
324 Cartoon
336 What’s New?
382 Unclassified Ads
383 BOMB. BOMB Results
384 Reader Service