[TUHS] /dev/drum

[Steve Simon]

i remember the interdata i started my unix career on. it had a halt light which was a good indication of cpu inactivity. we planned (though never did) to attach a light dependant resistor a big cap and an old brass meter in a wood and glass case so we could have a measure of “bored” to “thrashed” in true frankinstien’s lab style.

happy days
-Steve


> On 21 Apr 2018, at 00:35, Dave Horsfall <dave at horsfall.org> wrote:
> 
>> On Fri, 20 Apr 2018, William Pechter wrote:
>> 
>> Also had a write protect like every good drive should.
> 
> Not only that, but I note that my Mac does not have a visible disk-activity indicator; not surprising, really, as it seems to be thrashing like hell whenever I have the temerity to focus (i.e. click) upon another window.
> 
> Now, my Mac's system disk is external (don't ask), and it has a barely visible blue LED, which is why I know when it thrashes sometimes.  I intend to throw together a photo-transistor and a high-efficiency LED (plus a 9v battery) for a more visible "Danger!  Will Robinson!" alert.
> 
> -- 
> Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer."