Simplest (practical) file system?

Bob, In "from scratch" projects I've done, I've always just implemented the MS/PC-DOS FAT filesystem. It's simple, and it has the advantage of being readable and writable from any regular desktop PC directly. I've also done several variants of *nix filesystems, which are only slightly more complex, but perform much better at the expense of a bit of RAM. Naturally, if you stick to the standards, you'll have no trouble reading, writing (and verifying the correctness of) these volumes from Linux or FreeBSD. I prefer the former for floppies and other small-size removables, that latter for hard disks. Patrick >-----Original Message----- >From: cctalk-admin(a)classiccmp.org [mailto:cctalk-admin@classiccmp.org]On >Behalf Of Bob Shannon >Sent: Sunday, July 27, 2003 10:14 AM >To: cctalk(a)classiccmp.org >Subject: Simplest (practical) file system? > > >What is the simplest usable disk file system to implement? > >More specifically, if your going to write a disk file system from >scratch, what would be the easiest way to implement >some basic file system functionality? > >How did some of the very early DOS systems allocate disk space in the >days before FAT tables, etc? > >Just how simply can this be done?