29 May
2015
29 May
'15
7:10 p.m.
On 05/29/2015 02:18 PM, Marc Verdiell wrote:
We do have two 1401s, and on a good day, they both
work. No working
360s. But even if we could have the two 1401's talk to each other, it
would still take about the age of the universe to mine a block. This
is about the worst machine for scientific calculation, as it does
BCD, character by character arithmetic, in a serial fashion, one BCD
digit at a time. Hardware multiplication is an optional add-on
feature on these machines (which we have)!
Well, you have to understand that the 1401 was used as an I/O device for
the 7090//94 (cf. "SPOOL"), which were *real* scientific computers of
the time. You don't happen to have any of those, do you?
Wonder how long it would take on a Microchip low-end PIC MCU?
--Chuck