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Adding to this, even modern usage of 'ASCII' is not always purely ASCII, it'a almost always as a subset of another encoding that happens to utilize ASCII for the 7-bit space represented by bytes with the MSB being 0 (such as UTF-8, Shift JIS, or an ISO 8859 variant). for compatibility reasons.
– Austin Hemmelgarn
Commented Jul 8, 2020 at 22:12
What is current status of mainframes - are they still manufactured and improved?
– i486
Commented Jul 10, 2020 at 10:38
@i486 Of course. They are still (and for all forseable future) the backbone for most large systems. Whenever you do a credit card transaction, chances are good that a /360 style mainframe is involved at some - or several - points.
– Raffzahn
Commented Aug 17, 2020 at 20:58

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