Features p.36 Logo for Personal Computers [author Harold Nelson] A preview of the first small-computer versions of this exciting language. p.46 Build a Low-Cost Speech-Synthesizer Interface [author Steve Garcia] The Digitalker integrated circuits from National Semiconductor can easily give your computer a limited spoken vocabulary. p.72 Mathematical Modeling: A BASIC Program to Simulate Real-World Systems [author Randall E Hicks] A Compucolor II BASIC program effectively simulates a physical system through the solution of a system of linear differential equations. p.110 A Computer-Based Laboratory Timer [author John Gibson] Accurate, repeatable tine measurements can be made in rapid succession, and logged for later use. p.216 CP/M: A Family of 8- and 16-Bit Operating Systems [author Gary Kildall] An overview of Digital Research's operating systems, including a 16-bit operating system. p.248 The UNIX Operating System and the XENIX Standard Operating Environment [author Robert Greenberg] An inside look at a large-computer operating system implemented for use with microprocessors. p.268 The Ins and Outs of CP/M [author James Larson] Directly access the I/O and disk access functions of the CP/M operating system. p.302 Build a Super Simple Floppy-Disk Interface, Part II [author Roger Camp and James Nicholson] A moderate amount of software makes the 10-device circuit into a flexible floppy-disk controller. p.378 An Easy-to-Use A/D Converter [author Robert Daggit] This analog-to-digital converter features six input channels with accuracy of 8 to 10 bits. p.392 The Impossible Dream: Computing e to 116,000 Places with a Personal Computer [author Stephen Wozniak] An 8-bit microcomputer is harnessed to the Herculean task of computing the mathematical constant e to 115,925 places. Reviews p.24 RAMCRAM Memory Module for the Atari [author Mark Pelczarski] p.88 information Unlimited: The Dialog Information Retrieval Service [author Stan Miastkowski] p.176 Four Word Processors for the Apple II [author Keith Carlson and Steve Haber] p.352 Startrek 4.0 and Startrek 3.5 [author Scott Mitchell] p.356 The BDS C Compiler [author Christopher Kern] Nucleus p.6 Editorial: The New 16-Bit Operating Systems, or, The Search for Benützerfreundlichkeit p.12 Letters p.30, 162, 384 Technical Forums LISP vs FORTRAN: A Fantasy We Interrupt This Program... A Votrax vocabulary p.146 Education Forum Microcomputers in Education: A Concept-Oriented Approach p.168 Programming Quickie: Z80 Table Lookup p.208 BYTELINES p.234 System Notes: LIST - A Source-Listing Program for the C Language p.342 Ask BYTE p.348 Software Received p.350 Books Received p.350, 370, 377 BYTE's Bits p.364, 374 Book Reviews Musical Applications c% Microprocessors TEX and METAFONT: New Directions in Typesetting p.371 Clubs and Newsletters p.372 Event Queue p.376 BYTE's Bugs p.409 What's New? p.462 Unclassified Ads p.463 BOMB, BOMB Results p.464 Reader Service