Vol.3 n°7 july 1978

Vol.3 n°7 july 1978

p.3 In the Queue (table of contents)

p.3 In the Queue (table of contents)

Foreground

p.12 KIMER: A KIM-1 TIMER

p.12 KIMER: A KIM-1 TIMER

[theme : Software] [author : Baker]

p.28 THE AXIOM EX800 PRINTER: A User's Report

p.28 THE AXIOM EX800 PRINTER: A User's Report

[theme : Product Description] [author : Bosen]

p.60 THE Z-80 IN PARALLEL

p.60 THE Z-80 IN PARALLEL

[theme : Hardware] [author : Loewer]

p.72 CONTROLLING DC MOTORS

p.72 CONTROLLING DC MOTORS

[theme : Hardware] [author : Walton]

p.98 BUILD A KEYBOARD FUNCTION DECODER

p.98 BUILD A KEYBOARD FUNCTION DECODER

[theme : Hardware] [author : Ciarcia]

p.152 A HIGH LEVEL LANGUAGE FOR 8 BIT MACHINES

p.152 A HIGH LEVEL LANGUAGE FOR 8 BIT MACHINES

[theme : Software] [author : Williams-Conley]

p.162 HOW TO GET YOUR TARBELL GOING

p.162 HOW TO GET YOUR TARBELL GOING

[theme : Hardware] [author : Weinstein]

Background

p.32 TOP-DOWN MODULAR PROGRAMMING

p.32 TOP-DOWN MODULAR PROGRAMMING

[theme : Software] [author : Hearn]

p.42 WHO'S AFRAID OF DYNAMIC MEMORIES?

p.42 WHO'S AFRAID OF DYNAMIC MEMORIES?

[theme : Memory Design Tutorial] [author : Hauck]

p.48 ANTIQUE MECHANICAL COMPUTERS, Part 1 Early Automata

p.48 ANTIQUE MECHANICAL COMPUTERS, Part 1 Early Automata

[theme : History] [author : Williams]

p.64 THE FIRST TEN YEARS OF AMATEUR COMPUTING

p.64 THE FIRST TEN YEARS OF AMATEUR COMPUTING

[theme : History] [author : Libes]

p.84 A SHORT HISTORY OF COMPUTING

p.84 A SHORT HISTORY OF COMPUTING

[theme : History] [author : Reid-Green]

p.124 HOW TO CHOOSE A MICROPROCESSOR

p.124 HOW TO CHOOSE A MICROPROCESSOR

[theme : Architecture] [author : Frenzel]

Nucleus

p.4 In This BYTE

p.4 In This BYTE

p.6 Some Thoughts About Modems

p.6 Some Thoughts About Modems

p.11 Letters

p.11 Letters

p.16 The Second West Coast Computer Faire

p.16 The Second West Coast Computer Faire

p.96 Clubs, Newsletters

p.96 Clubs, Newsletters

p.112 Languages Forum: BASIC to Assembly Language Linkage

p.112 Languages Forum: BASIC to Assembly Language Linkage

p.115 Technical Forum:

p.115 Technical Forum:

Fooling with the Stack Pointer

More on Varistors

p.117 Book Reviews

p.117 Book Reviews

p.118 BYTE's Bits

p.118 BYTE's Bits

p.118 BYTE's Bugs

p.118 BYTE's Bugs

p.119 Programming Quickies: Beating North Star-MITS Incompatibility

p.119 Programming Quickies: Beating North Star-MITS Incompatibility

p.123 College Sports Report

p.123 College Sports Report

p.172 Event Queue

p.172 Event Queue

p.177 What's New?

p.177 What's New?

p.206 Unclassified Ads

p.206 Unclassified Ads

p.208 BOMB

p.208 BOMB

p.208 Reader Service

p.208 Reader Service

This month's cover shows Babbage's 1822 difference engine, a device designed to calculate values in mathematical tables. Charles Babbage was one of the earlier pioneers in the field of computational machinery, whose work paved the way for later breakthroughs in computing.

In this BYTE

p.12 One way to demonstrate your KIM-1 computer is to use it as a clock. Robert Baker's article KIMER : A KIM-1 Timer shows you how to display hours, minutes and seconds on the computer's LED display. The program can also be used as a timer. page 12

p.12 One way to demonstrate your KIM-1 computer is to use it as a clock. Robert Baker's article KIMER : A KIM-1 Timer shows you how to display hours, minutes and seconds on the computer's LED display. The program can also be used as a timer. page 12

p.28 Heat sensitive aluminized paper is the key ingredient in Axiom's unusual EX800 printer. Find out about one user's reactions to this peripheral in The Axiom EX800 Printer: A User's Report by R J Bosen. page 28

p.28 Heat sensitive aluminized paper is the key ingredient in Axiom's unusual EX800 printer. Find out about one user's reactions to this peripheral in The Axiom EX800 Printer: A User's Report by R J Bosen. page 28

p.32 Transforming the goal "I want thus and so function" into a program which performs that function is an act of design. Albert D Hearn provides the novice programmer with some background philosophy about design of personalized programs in his article entitled Modular Programming. page 32

p.32 Transforming the goal "I want thus and so function" into a program which performs that function is an act of design. Albert D Hearn provides the novice programmer with some background philosophy about design of personalized programs in his article entitled Modular Programming. page 32

p.42 Are you afraid of dynamic memories? Let author Lane T Hauck remove some of the mysteries about these devices in Who's Afraid Of Dynamic Memories? The greatest potential of the dynamic memory for the experimenter is its low price; reading the article should prove to be a "refreshing" experience. page 42

p.42 Are you afraid of dynamic memories? Let author Lane T Hauck remove some of the mysteries about these devices in Who's Afraid Of Dynamic Memories? The greatest potential of the dynamic memory for the experimenter is its low price; reading the article should prove to be a "refreshing" experience. page 42

p.48 Dr James M Williams takes readers on a fascinating tour of early experiments in automata in his article Antique Mechanical Computers, Part 1: Early Automata. Read about Vaucanson's mechanical duck and the other miraculous pre-19th century devices that foreshadowed today's computers. page 48

p.48 Dr James M Williams takes readers on a fascinating tour of early experiments in automata in his article Antique Mechanical Computers, Part 1: Early Automata. Read about Vaucanson's mechanical duck and the other miraculous pre-19th century devices that foreshadowed today's computers. page 48

p.60 Today more and more design engineers are introducing parallel processing into computer systems to improve through put rates. With the advent of inexpensive microprocessors, experimenters can now investigate this fascinating area. Find out more by reading Robert Loewer's The Z-80 in Parallel . page 60

p.60 Today more and more design engineers are introducing parallel processing into computer systems to improve through put rates. With the advent of inexpensive microprocessors, experimenters can now investigate this fascinating area. Find out more by reading Robert Loewer's The Z-80 in Parallel . page 60

p.64 When did personal computing really begin? Was it 1974 or 1971 ? The surprising answer is 1966. Sol Libes' The First Ten Years of Amateur Computing traces the growth of this rapidly growing field over the past decade, and gives credit to the true pioneers. page 64

p.64 When did personal computing really begin? Was it 1974 or 1971 ? The surprising answer is 1966. Sol Libes' The First Ten Years of Amateur Computing traces the growth of this rapidly growing field over the past decade, and gives credit to the true pioneers. page 64

p.72 The ability to control DC motors allows you to imagine applications from games to robotics. Robert L Walton describes a simple method of shaft position control in his article, Controlling DC Motors. page 72

p.72 The ability to control DC motors allows you to imagine applications from games to robotics. Robert L Walton describes a simple method of shaft position control in his article, Controlling DC Motors. page 72

p.84 Have you ever wondered how this business of computing ever got started? And just what were the major developments and discoveries that made the computer industry what it is today? Well, take A Short History of Computing course by reading the article by Keith S Reid-Green. It provides a perspective on the antecedents of today 's developments in the field of computing. page 84

p.84 Have you ever wondered how this business of computing ever got started? And just what were the major developments and discoveries that made the computer industry what it is today? Well, take A Short History of Computing course by reading the article by Keith S Reid-Green. It provides a perspective on the antecedents of today 's developments in the field of computing. page 84

p.98 If you would like to turn your printer or other peripheral on and off from your computer keyboard, Steve Ciarcia describes a simple way to do it with an EROM in Ciarcia's Circuit Cellar: Build a Keyboard Function Decoder. page 98

p.98 If you would like to turn your printer or other peripheral on and off from your computer keyboard, Steve Ciarcia describes a simple way to do it with an EROM in Ciarcia's Circuit Cellar: Build a Keyboard Function Decoder. page 98

p.724 How do I choose a microprocessor for personal computing? In some respects the problem is analogous to attempting to choose between a V-8 and a V-6 automobile engine of the same horsepower: both make the car go and most users couldn 't care less about the type of engine so long as the car gets them to their desired destinations. Similar considerations apply in the choice of a personal computer product based on the microprocessor it contains. Who cares what microprocessor the product contains, so long as it accomplishes a certain minimum level of function with respect to systems and applications software? Lou Frenzel of the Heath Company gives some thoughts on How to Choose a Microprocessor in an article in this issue. page 724

p.752 Thinking of writing your own high level language interpreter for your home computer? If so, Ted Williams' and Steve Conley's article, A High Level Language for 8 Bit Machines, will supply you with an overview of one such implementation. The language that they develop is suitable for use as both an interpreter or a compiler. page 752

p.162 If you own a Tarbell cassette interface, read How to Get Your Tarbell Going. Author Larry Weinstein explains how the unit works and gives so me suggestions for improving performance . page 162

p.162 If you own a Tarbell cassette interface, read How to Get Your Tarbell Going. Author Larry Weinstein explains how the unit works and gives so me suggestions for improving performance . page 162