Vol.1 n°8 april 1976

Vol.1 n°8 april 1976

p.3 In the Queue (table of contents)

p.3 In the Queue (table of contents)

Foreground

p.20 BIORHYTHM FOR COMPUTERS

p.20 BIORHYTHM FOR COMPUTERS

[theme : Application] [author : Fox-Fox]

p.28 HOW TO BUILD A MEMORY WITH ONE LAYER PRINTED CIRCUITS

p.28 HOW TO BUILD A MEMORY WITH ONE LAYER PRINTED CIRCUITS

[theme : Hardware] [author : Lancaster]

p.34 AARGH! (or, HOW TO AUTOMATE PROM BURNING WITHOUT EML)

p.34 AARGH! (or, HOW TO AUTOMATE PROM BURNING WITHOUT EML)

[theme : Hardware] [author : P Helmers]

p.42 CONTROLLING EXTERNAL DEVICES WITH HOBBYIST COMPUTERS

p.42 CONTROLLING EXTERNAL DEVICES WITH HOBBYIST COMPUTERS

[theme : Hardware] [author : Bosen]

p.46 INTERFACE AN ASCII KEYBOARD TO A 60 mA TTY LOOP

p.46 INTERFACE AN ASCII KEYBOARD TO A 60 mA TTY LOOP

[theme : Hardware] [author : Cotton]

p.56 DESIGN AN ON LINE DEBUGGER

p.56 DESIGN AN ON LINE DEBUGGER

[theme : Software] [author : Wier-Brown]

p.79 IO STROBES FOR THE ALTAIR 8800

p.79 IO STROBES FOR THE ALTAIR 8800

[theme : Hardware] [author : Schulein]

p.80 SAVE MONEY USING MINI WIRE WRAP

p.80 SAVE MONEY USING MINI WIRE WRAP

[theme : Hardware] [author : Thompson]

Background

p.16 PROGRAMMING THE IMPLEMENTATION

p.16 PROGRAMMING THE IMPLEMENTATION

[theme : Software] [author : Crayne]

p.24 THE MAGIC OF COMPUTER LANGUAGES

p.24 THE MAGIC OF COMPUTER LANGUAGES

[theme : Software] [author : Nelson]

p.36 THE SR-52: ANOTHER WORLD'S SMALLEST

p.36 THE SR-52: ANOTHER WORLD'S SMALLEST

[theme : Systems] [author : Flippin]

p.50 FRANKENSTEIN EMULATION

p.50 FRANKENSTEIN EMULATION

[theme : Speculations] [author : Murray]

p.64 MICROPROCESSOR UPDATE: TEXAS INSTRUMENTS TMS9900

p.64 MICROPROCESSOR UPDATE: TEXAS INSTRUMENTS TMS9900

[theme : Hardware] [author : Baker]

Nucleus

p.2 In This BYTE

p.2 In This BYTE

p.4 Customization-The Expression of Individuality

p.4 Customization-The Expression of Individuality

p.6 Letters

p.6 Letters

p.12 Space Ace Revisited

p.12 Space Ace Revisited

p.14, 18, 78 What's New

p.14, 18, 78 What's New

p.32, 77, 84 BYTE's Bits

p.32, 77, 84 BYTE's Bits

p.55 Technology Update

p.55 Technology Update

p.74 BYTE's Bugs

p.74 BYTE's Bugs

p.74 Classified Ads

p.74 Classified Ads

p.76 Book Review

p.76 Book Review

p.90 Clubs, Newsletters

p.90 Clubs, Newsletters

p.96 BOMB

p.96 BOMB

p.96 Reader's Service

p.96 Reader's Service

In this BYTE

Curiosity, experimentation and imagination are great aids to the user of a computer system. Charles A Crayne describes two in struction set variations he found while Programming the Implementation of an 8008 processor as a SCELBI 8H minicomputer.

Can a computer predict your state of mind? A better question would be: Is there a theory which can be computationally verified to predict your state of mind? Biorhythm for Computers is an article by Joy and Richard Fox on the use of a BASIC calculation to provide predictions based upon the pseudo science of a simple biorhythm hypothesis.

A key element of computing is the expression of ideas in the form of programs and algorithms. It takes the Magic of Languages to make such expressions in a form the computer can understand . Turn to Theodor Nelson's article for an introduction to some basic concepts of computer languages.

Ho hum, another memory article? Not quite. When Don Lancaster adds a twist of ingenuity, you find out How to Build a Memory With One Layer Printed Circuits, saving the trouble of using many wire jumpers or figuring out how to make double layer boards in the kitchen PC laboratory.

Aargh! (or, How to Automate PROM Burning Without EML) was Peter Helmers' reaction to a suggestion that relays be used to control a circuit. Study his figures for technical information and learn about the exciting new field of EML [sic] logic in the accompanying text.

It could not take long to find another contender in the marketplace for compact computer systems. In this issue, J Bradley Flippin discusses The SR-52: Another "World's Smallest Computer System."

Input is often done with a switch contact when simple on off states of electrom echanical systems are considered. But suppose you want to program stage lighting or drive a keyboard machine with so lenoids. Then you'll need information on Controlling External Devices with Hobbyist Computers. Robert J Bosen presents some ideas on the subject.

Computers require a large dose of that arcane ar t, interfacing. Jay A Cotton shows one example of that art in his discussion of how to Interface an ASCII Keyboard to a 60 mA TTY Loop.

Introspection is a prime technique for analyzing the human consciousness. Many parallels can be drawn between the design of camplicated computer networks and knowledge of human mental functions. While not purporting to be a complete or final model of human mental functions, Joe Murray's article on Frankenstein Emulation provides some good inputs on the ultimate hobby: modeling human behavior.

Minicomputers and microcomputers are really quite similar. The former are simply faster and more expensive than the current versions of the latter. Thus when you Design an On Line Debugger for a minicomputer, as Robert Wier and James Brown have done, the same general interactive design can be used as the control panel interface for any microcomputer as well. Add an on line debugger to your computer and you'll make it a much easier device to use.

What's better than an 8 bit processor in a 40 pin package? Why, a 16 bit processor in a 64 pin package, of course. In his Microprocessor Update: Texas Instruments TMS9900, Robert Baker provides readers with an overview of this exciting new computer which is sure to find its way into personal computing systems over the next year or so.

Ingenuity is an old American tradition. Roger W Thompson makes his contribution to that tradition in his description of how to Save Money Using Mini Wire Wrap, a socketless penny pinching way of wiring integrated circuit projects.

On the cover, at the suggestion of Tully Peschke, Robert Tinney created a fantasy on a theme of BYTE. First aid has already been applied and it is expected that the banner will be fixed in time for the May issue.