Lies in education [was Re: The "loop and a half"]

[Gregory Ewing]

alister wrote:
> in the past for large quantitys the data in a ROM chip was part of the 
> chip etching mask

I know, I'm considering the masking process to be a kind of
write operation.

> The Apollo lunar lander used a magnetic core store that was hard coded at 
> the time it was "Woven" 
> 
> I doubt that either process is in widespread usage any longer as most 
> manufacturers no incorporate a way to update the firmware of a device

Magnetic core technology died out long before that, due to
inability to build machines that simulated armies of ladies
with sewing needles!

-- 
Greg