On 2022-01-31 6:19 p.m., Bill Gunshannon via cctalk wrote:
On 1/31/22 20:13, Fred Cisin via cctalk wrote:
On Mon, 31 Jan 2022, Paul Koning via cctalk wrote:
Yes, RT-11 is a somewhat unusual file system in that it doesn't just
support contiguous files -- it supports ONLY contiguous files. That
makes for a very small and very fast file system.
The only other example I know of that does this is the PLATO file
system.
The UCSD P-System had contiguous files. If small files had been
deleted, so that space was fragmented, you had to run a "CRUNCH"
program to defragment it. Directory entries had the starting
location and length.
That was a minor inconvenience. The bigger problem was that on a
"CRUNCHed" disk you could only open one file for writing. Attempt to
open a second returns an error.
bill
How are text files handled the above systems?
The editor writes to a temp file, then deletes
the old file, and renames the temp file?
Ben.
