Session captured from a DE1 board running a 11/45 configured with a RK11 controller and a single console. The RK05 image is the Unix V5 image that can be found on the SIMH website.
Hello, world [t44]: cpu 11/45 boot from rk: @unix login: root # cd /etc cd: not found # chdir /etc # ls -als total 40 drwxr-xr-x 2 bin 240 Mar 21 12:07 . drwxr-xr-x 9 bin 224 Mar 21 12:51 .. -rwxr--r-- 1 bin 474 Nov 26 18:13 getty -rwxr-xr-x 1 bin 1446 Nov 26 18:13 glob -rwxr--r-- 1 bin 1972 Nov 26 18:13 init -rwxr-xr-x 1 bin 814 Nov 26 18:13 lpd -rwxr--r-- 1 bin 4136 Nov 26 18:13 mkfs -rwxr--r-- 1 bin 1800 Nov 26 18:13 mknod -rwsr-xr-x 1 root 2078 Nov 26 18:13 mount -rw-r--r-- 1 bin 49 Nov 26 18:13 passwd -rw-r--r-- 1 bin 70 Nov 26 18:13 rc -rw-r--r-- 1 bin 56 Nov 26 18:13 ttys -rwsr-xr-x 1 root 1990 Nov 26 18:13 umount -rwxr-xr-x 1 bin 32 Nov 26 18:13 update -rw-r--r-- 1 root 144 Mar 21 12:52 utmp # cat passwd root::0:1::/: daemon::1:1::/bin: bin::3:1::/bin: # pwd ../etc # chdir chdir: arg count # chdir / # pwd .. # date Fri Mar 21 12:53:06 EST 1975 # cal 2 2014 Feb 2014 S M Tu W Th F S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 # ed hello.c ? a main() { printf("Hello, worldn"); } ? w 39 q # cc hello.c # ./a.out Hello, world # chdir /usr/sys/conf # cat conf.c /* * Copyright 1974 Bell Telephone Laboratories Inc */ int (*bdevsw[])() { &nulldev, &nulldev, &rkstrategy, &rktab, 0 }; int (*cdevsw[])() { &klopen, &klclose, &klread, &klwrite, &klsgtty, &nulldev, &nulldev, &mmread, &mmwrite, &nodev, &nulldev, &nulldev, &rkread, &rkwrite, &nodev, &pcopen, &pcclose, &pcread, &pcwrite, &nodev, &dcopen, &dcclose, &dcread, &dcwrite, &dcsgtty, 0 }; int rootdev {(0<<8)|0}; int swapdev {(0<<8)|0}; int swplo 4000; int nswap 872; # mv . x values of B will give rise to dom! #