I'd have to see the actual Korda graphic to suggest any details, but 'alpha-numeric' just means it is composed of numbers and letters, and 'instant' suggests that its message is immediate and/or was soon recognized by the public.
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Mister Micawberthat its message is immediate and/or was soon recognized by the public.Would you mind telling me that why you opted for past tense 'was soon recognized' when present was, in my humble opinion, more fitting?
Mister Micawberin my explanation-- I don't know that that is the case, thoughAre you saying that you used past tense because you were hypothesizing the condition?