==== Acorn Level 1 ====
Consisted of a single machine sharing a DFS diskette.

==== Acorn Level 2 ==== 
A level 2 server required a dedicated server machine to serving file
requests.  The dedicated machine required a 6502 second processor to be
fitted.

A level 2 server utilised normal disc drive(s) for storage, although the
diskettes had to be formatted to fileserver format
<ref>http://www.bcde.demon.co.uk/AcornAppNote076.txt</ref> using an
included utility to be readable by the fileserver.

Each authorised user has a password, this protected a directory on the disk
for which the user had owner permissions, these permissions and can protect
their files.

Each disc could also contain a library directory where shared information
could be stored, with all authorised users having access t o files in the
library directory.

==== Acorn Level 3 ==== 
The level 3 fileserver added the facility to access a hard disk, the
fileserver however also required a second processor.

The hard disk was formatted as a standard ADFS disk, but had an ANFS
partion <ref>http://www.bcde.demon.co.uk/AcornAppNote075.txt</ref> created
for use by the File Server.

An econet real time module was also required, as this was used as a
hardware dongle.

==== Acorn FileStore ====
Self-contained system

==== Acorn Level 4 ====
File server running on a RISC OS computer

==== Acorn Advanced Level 4 ====
File server running on a RISC OS computer

==== SJ Research RM80Z ====
File server running on a Research Machines RM80Z

==== SJ Research FDFS ====
Floppy Disk File Server

==== SJ Research HDFS ====
Hard Disk File Server

==== SJ Research MDFS ====
Modular Disk File Server

==== awServer ====
File server running on a RISC OS computer

==== SoftMDFS ====
File server running on a RISC OS computer

==== aund ====
A basic fileserver running on NetBSD
<ref>http://mail-index.netbsd.org/port-arm26/2000/12/10/0001.html</ref>

== References ==

<references/>
[[Title:File Servers]]
[[Category:Networking]]