Ham sandwich navigation and radar failure

Roy Smith wrote:
Dan Truesdell wrote:

Someone once told me that the term "winchester" came from IBM, where
their non-removable drive was the 3030. Any truth to that?


That's certainly the story I always heard. Goes back to the IBM-1130
days. I played with an 1130 some, but they were pretty much gone by the
time I came around.

The IBM 3330 (not 3030) was the Winchester and it was introduced shortly after
the System/360 gave way to the System/370. I tested the OS MFT/MVT software for
them back in the early '70s. IIRC it was the first IBM drive that used "rotation
position sensing", so reads/writes could be ordered to minimize rotational delay.

The 1130 had a 2311 drive, I think. Saw 1130s that were used for chip design but
never used one personally. They drove a huge plotter that produced an image that
was photographically reduced to make the masks for the photlithography in chip
manufaturing. The 1130's sister, the 1800, was used as a process controller for
pulling silicon crystals.

Yup, I worked in the old Components Division where all the cancer clusters are
generating lawsuits.

--

Remove SHIRT to reply directly.