Vol.5 n°8 august 1980

Vol.5 n°8 august 1980

p.3 In the Queue (table of contents)

Foreground

p.22 A BUILD-IT-YOURSELF MODEM FOR UNDER $50

This originate-only modem will allow you to get started in intercomputer communication with minimal expense.

[author : Steve Ciarcia]

p.58 THE HARD-DISK EXPLOSION: HIGH-POWERED MASS STORAGE FOR YOUR PERSONAL COMPUTER

Thanks to new hard-disk technology, personal computer users can add millions of bytes of mass storage to their systems at a reasonable cost.

[author : Tom Manuel]

p.100 WHAT IS FORTH? A TUTORIAL INTRODUCTION

Here is an overview of FORTH that lays the foundation for the other theme articles in this BYTE.

[author : John S James]

p.150 BREAKFORTH INTO FORTH

If you can't imagine any personal use for FORTH, can you imagine a 96-line program that plays a fast, animated game with sound on the TRS-80?

[author : A Richard Miller and Jill Miller]

p.164 FORTH EXTENSIBILITY: OR HOW TO WRITE A COMPILER IN TWENTY-FIVE WORDS OR LESS

This tutorial explains the capability for defining new families of FORTH words.

[author : Kim Harris]

p.210 CONSTRUCTION OF A FOURTH-GENERATION VIDEO TERMINAL, PART 1

Part 1 of this article presents a new design using the 8275 controller and a dedicated Z80 microprocessor.

[author : Theron Wierenga]

Background

p.76 THE EVOLUTION OF FORTH, AN UNUSUAL LANGUAGE

The inventor of the language recalls its design and how it evolved over a 10-year period.

[author : Charles H Moore]

p.198 KHACHIYAN'S ALGORITHM, PART 1: A NEW SOLUTION TO LINEAR PROGRAMMING PROBLEMS

Now you can study the algorithm that promised to revolutionize linear programming.

[author : G C Berresford, A M Rockett, and J C Stevenson]

Nucleus

p.6 Editorial: Threads of a FORTH Tapestry

p.14 Letters

p.40 Product Review: The Ohio Scientific CA-15 Universal Telephone Interface

p.46 Product Review: The Heath H-89 Computer

p.72 Programming Quickies: Self-Reproducing Programs

p.94 BYTEL1NES

p.98 Selected FORTH Vendors

p.196 A FORTH Glossary

p.226 Clubs and Newsletters

p.230 Event Queue

p.234 Ask BYTE

p.248 Whats New?

p.302 Unclassified Ads

p.303 BOMB, BOMB Results

p.304 Reader Service

ON THE COVER

This month's cover by Robert Tinney shows a rocket-like needle threading its way through granite cubes labeled: DOUBLE , DUPLICATE , and + . The threaded path of the needle is a representation of the process used in FORTH and other threaded languages to create a new word (here, DOUBLE ) with previously defined words (here, DUPLICATE and + ). Other aspects of this fascinating language are described in the editorial, "Threads of a FORTH Tapestry," and in the theme articles for this issue.

1979 5.08 1981