Back in the mid-'70's, I worked with a fellow who'd been at GE when they developed the timeshared BASIC that we were implementing on our system. His doc's from GE called it what I stated. I've actually never heard mention of "all-purpose" where I recalled "algorithmic".

I hope you didn't get that from the often-wrong Wikipedia. It took me two years to get them to acknowledge that they had omitted the most widely used form of Manchester code, namely that in the IEEE 802.3 standard. Like me, they'd been unable to snag a copy of the standard long enough to ferret out the definition.

Even so, they only went as far as to say, "Well ... it can be this ... or it can be the exact opposite." Their "wrong", as far as the IEEE standard is concerned, definition went viral and now there are six or seven references to the incorrect usage with respect to Ethernet, for every correct one on the www.

There's no telling which is actually correct, since the information pool has been contaminated.

RE