25 Mar
2005
25 Mar
'05
9:43 a.m.
On Fri, 25 Mar 2005 12:33:51 +0100, Jules Richardson
<julesrichardsonuk at yahoo.co.uk> wrote:
On Thu, 2005-03-24 at 23:48 -0500, David V. Corbin
wrote:
Most old computers I used had power-on sequencing and testing of some
kind, but it never amounted to a significant part of startup time.
Typically less than half a minute, I'd say.
The boot time was highly dependent on how much stuff they had to get
loaded before the system was useable. Our HP-3000 would get drives ready,
journals checked, MPE and databases loaded and terminals ready to use in
about 20 minutes. The 260/50, on the other hand, would need some 45
minutes for a full IPL. That was until IMS and TSO/ISPF was available for
us poor users.
--
-bv
...
So what's the slowest classic machine to boot (to the point where a user
can start using the machine, say)? Modern paranoia checks for correct
PSU voltages etc. don't count! :-) I mean time as it would have taken
when the machine was new, including time to physically load any tapes
etc. (and standard period checks are of course OK)