19 Sep
2009
19 Sep
'09
6:43 a.m.
On 19/09/2009, at 1:51 AM, Phil Budne wrote:
Did this mean our DECsystem-10 ran 12% slower too - if so it's no
wonder it felt slow :-)
Huw Davies | e-mail: Huw.Davies at kerberos.davies.net.au
Melbourne | "If soccer was meant to be played in the
Australia | air, the sky would be painted green"
From: Huw
Davies <huw.davies at mail.vsm.com.au>
On 17/09/2009, at 5:46 AM, Phil Budne wrote:
Both models read 16.6 cards per jiffy therefore
time just runs slower in 50Hz countries! % grep CR10 ~www/ult/phil/pdp10/10periphs
BA10 hard copy control for CR10, LP10, XY10
CR10A card reader (Soroban Model ERD) 1000CPM 60Hz power
CR10B card reader (Soroban Model ERD) 830CPM 50Hz power
CR10E card reader 1200CPM
CR10F table top card reader 300CPM
(the above file is web visible at http://www.ultimate.com/phil/pdp10/10periphs
)
Looking at the CR10A and CR10B the ratio of CPM to power Hz is about
the same. Does this mean that those of us who had cards read in 50Hz
countries were being ripped off :-)