Byte Magazine Volume 05 Number 05 - Floppy Disks

Foreground p.20 A DC-TO-DC CONVERTER [author Michael Picco] Here's a simple converter that uses a standard integrated circuit for producing a 25 mA bipolar source from a single-ended power supply. p.22 I/O EXPANSION FOR THE RADIO SHACK TRS-80, Part 1: Principles of Parallel Ports [author Steve Ciarcia] This month Steve explains the operation of parallel input/output as a prelude to next month's design for an economical RS-232C interface. p.44 KIMDOS, Using Your KIM-1 with a Percom Floppy-Disk Drive [author Joel Swank] Using the LFD-400 disk-controller board, the KIM-1 can access up to 87.5 K data bytes on several 5-inch hard-sectored floppy-disk drives. p.72 INTERFACE A FLOPPY-DISK DRIVE TO AN 8080A-BASED COMPUTER [author John Hoeppner] Building a disk-controller board for a Shugart SA400 disk drive can be done easily and with commonly available parts. p.196 GIVE YOUR COMPUTER AN EAR FOR NAMES [author Tom Munnecke] With the Soundex code, you can locate people's names in your data base by similar, but not exact, spellings. p.214 THE COSMAC DOODLER [author Jeff Duntemann] An electronic sketchpad? Even a small system like the COSMAC ELF can draw designs using a video display. p.250 ER…