24 Apr
2018
24 Apr
'18
6:27 a.m.
On Tue, Apr 24, 2018 at 10:25:17AM +1000, Warren Toomey wrote:
On Tue, Apr 24, 2018 at 01:44:06AM +0200, Johnny
Billquist wrote:
See the blurb for the UNSW 01 image here:
http://www.tuhs.org/Archive/Distributions/UNSW
UNSW 01
-------
Tape label: System Source Disk
DD format URK? BS=24B count=203 800bpi 9track
UNIX System Source 1 of 1
25/1/78
A distribution of UNIX source from UNSW, with several changes. record0.gz is
an RK05 image laid out according to the `Boston Children's Museum' format
(i-nodes in the middle). Latest file timestamp is Jan 24 1978. There is only
kernel source, plus a `unswbatch' directory. The latter seems to hold the
source to a UNIX batch system developed by Ian Johnstone and other at the
School of Electrical Engineering at UNSW.
record0.tar.gz is a tar archive of the RK05 image.
Cheers, Warren
Which is also why the file system for RSX (ODS-1)
placed the index
file (equivalent of the inode table) at the middle of the disk by
default.
Not sure if Unix did that optimization, but I would hope so. (Never
dug into that part of the code.)
Boston Children's Museum RK05 driver for 6th Ed springs to mind!