11 Jun
1998
11 Jun
'98
9:09 a.m.
Let's say UNIX-like, DOS-like, simple (just data),
and that's about it
I've looked at Apple manuals, and the Apple ][ format is kinda like
DOS in terms of having an array of blocks and stuff. Except Apple's
is quite a bit more elegant. Since some people here are fond of
praising the VAX, how does its file system work (typically)?
The Vax was something different from Unix and Dos.
It had a bitmap to allow quick allocations. It also
had the ability to create contiguous files to suport real time
work.
It had a layer called RMS which gave it indexed file access. Kind
of like IBM mainframe stuff. Files could have a declared
record size like they do on mainframes.
Vax/VMS ODS-2 (the vax enhancement to the RDX11 ODS-1 file structure)
actually supported multiple directories, multiple directory roots (many
systems booting off different structures on one disk).
Someone here should be able to point to some ODS-2 docs on the web.
Bill