15 Oct
2012
15 Oct
'12
10:26 a.m.
On Oct 15, 2012, at 12:44 PM, Fred Cisin wrote:
Ah, yes, I did the math in my head and may have left off an order of
magnitude or 3. Assuming a 100-Ah battery (not abnormal for an
American-sized car, I guess) and a million transistors running a
steady 10mA each (not out of the question, but may be off by an order
of magnitude if you want it to run at any real speed):
100Ah / 10,000A = .01 hours = .6 minutes = 36 seconds
The real key would be to see whether you could boot to DOS before the
jumper cables set anything on fire.
Also, looking it up, the approximate transistor count of the Pentium
was 3 million, not 1 million, so perhaps it's really more like 10
seconds.
- Dave
>>>> Of course. Anything done with chips can also be done with discrete
>>>> components.
>>> a "pentium" laptop ?
>> Since nobody said how big the board could be... Multiple full AT sized
>> boards in a backplane for a luggable Pentium "laptop"? :)
> battery life?
On Mon, 15 Oct 2012, David Riley wrote:
A car battery should power that sort of thing for
a reasonable amount
of time;
for some very quick value of "reasonable".