I'm looking for some software from 1985-1986 that used additional RAM in the Mac 512K as a disk cache: Turbocharger by Nevins Microsystems, and PowerDisk.
I have the manual for Turbocharger, but no software. :-(
TurboCharger is a disk caching program that can be configured to store frequently accessed areas of a floppy disk within RAM, thereby speeding up disk access when working with floppies. Make Your Macintosh Faster. Guaranteed.