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HomeLib issue: BYTE - Volume 6, issue 5 (May, 1981)
Features Extended Color BASIC for the TRS-80 Color Computer 36 Fast, easy and inexpensive graphics are finally available for personal computers with this new system from Radio Shack. Stan Miastkowski The Commodore VIC 20 Microcomputer: A Low-Cost, High-Performance Consumer Computer 46 The VIC 20 has color, sound, graphics and expandability, and sells for $299,95. Gregg Williams Ciarcia's Circuit Cellar: DC Motor Controls: Build a Motorized Platform 46 Appropriate circuits can very precisely control permanent-magnet DC motors. Steve Ciarcia Washington Tackles the Software Problem 128 Recent court decisions pave the way for more software protection against piracy. Christopher Kern Legal Protection for Computer Hardware and Software 140 An overview of partents, copyrights, and trade secrets, and how they relate to computer software and hardware protection. Stephen A. Becker Wire-Wrapping and Proto-System Techniques 152 Construction of homebrew designs is greatly aided by the complete wire-wrapping systems from Vector Electronics. Adolph Mangieri Speeding Up TRS-80 Graphics 171 Improve the response time of BASIC graphics displays on your TRS-80. Ronald Bobo, John Knoderer An Integer Math Package for the 8080 204 These routines are useful when you need arithemitc operations on signed 16-bit number. Bruce D. Carbrey Using Interrupts on the Apple II System 280 The use of interrupts in the 6502 microprocessor is demonstrated using an Apple II. George M. White Digital Plotting with the Apple II Computer 296 Interface an x,y plotter directly to an Apple II with a minimum of hardware. Richard C. Hallgren Recursion and Side Effects in Pascal 316 The use of global and local variables can change how program works. Robert Morris DEMONS: A Symbolic Debugging Monitor 326 Debug your machine-language programs for 6800-based systems using instruction mnemonics. A. I. Halsema Build a Super Simple Floppy-Disk Interface, Part 1 360 Ten integrated circuits can provide all the features of a commercial disk controller at a fraction of the cost. James Nicholson, Roger Camp A File Catalog System for UCSD Pascal 408 Keep track of all those scattered files with this organization system. Edward Heyman Numerical Methods In Data Analysis 436 Gauss-Jordon elimination and the Newton-Raphson method can be used to find the function curve that best fits a set of empirically determined data. Toan C. Nguyen Reviews The Epson MX-22 and MX-70 Printers 22 Kevin Cohan BYTE's Arcade 106 Star Raiders; Super Nova; Tranquility Base; Asteroids in Space and Planetoids Gregg Williams, Bob Liddil, Robin Moore, Oliver Holt Dancing Demon from Radio Shack 148 Elizabeth Cooper, Yvon Kolya Super STEP 248 Stanley D. Robbins Wordsmith 254 Mark Dahmke Nucleus Editorial: How Can We Stop Software Piracy? 6 Chris Morgan Letters 12 System Notes: Improve TRS-80 Disk Operation: Add an External Data Separator 102 Ken Kline System Notes: Faster BASIC for the Ohio Scientific 236 John A. Sauter Programming Quickies 122, 430 Using Page Two with Apple Pascal Turtle Graphics
Printf for the C Function Library Cartoon 126 Education Formu: Getting Problem-Solving Advice From a Computer 186 Desk-Top Wonders: A Cheeboard Jorney on the TI-59 Programmable Calculator 198 Technical Forum 228,378,452,458 Print Your Own Bar Codes: UPC Bar Codes With the Centronics 737
PAPERBYTE Bar Codes with Integral Data System Printers
Favorite Benchmarks and Other Programs
Build a Noise-Based Random-Number Generator
Fast Fourier Comes Back BYTE's Bugs 232, 252 Book Reviews 244, 380 Principles of Interactive Computer Graphics, 2nd Edition
Travels in Computerland, or Incompatibilities & Interfaces BYTELINES 262 BYTE's Bits 278, 428 Ask BYTE 384 Software Received 394 Books Received 398 Clubs and Newsletters 404 Event Queue 447 What's New? 463 Unlassified Ads 510 BOMB, BOMB Results 511 Reader Service 512
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