Phil nice list.

On Fri, Jul 1, 2022 at 3:23 PM Phil Budne <phil@ultimate.com> wrote:

> I've always assumed BSD used ^Z as the suspend character for this reason.
>
Yes, Kulp's Job control for the PDP-11 was based on his ITS experience.
Joy picked it up from Kulp.
The other big gift to UNIX from ITS was Eric Shienbrood's more(1) command
[discussed elsewhere].

This brings us back to the topic -- the need for more(1) as either built-in
like ITS or as command [UNIX] is lost with today's infinite scroll buffers.



> To pull the thread back to the list topic
>
> 2. Fix a filesystem without fsck.
>
Much less, what was fsck(1) original name at CMU ;-) or why tjk wrote the
first version.

4. Edit a driver and recompile the kernel to change partition sizes.
>
Doing the same with adb(1) on the kernel binary
as well as understanding disk geometry and calculating the HEAD/CYL/SEC to
block numbers properly.

> 6. Wonder whether something with a serial port is a DTE or a DCE.
>
How about knowing what DTE and DCE mean in the first place.
Along with why CTS/RTS (HW) flow control was really needed  at high speed.
Why the UNIX community tended to migrate to aftermarket DH11, instead of
DZ-11s - particularly for UUCP

> 8. Adjust jumpers on a peripheral
>
How about having the proper jumper sizes. Or realizing the DIP switches
were not actually toggling properly so the address was wrong.

> 9. Insert or remove wires for IRQ bus continuity
>
Know what a BUS GRANT card does.
ᐧ