IBM Scan Codes
The following table is nothing to do with ASCII, but has been requested by a number of you out there. When a key on your keyboard is pressed, a code is sent which can be recognised by software. Programmers will find the most use for this table to map keys to actions for the function keys etc.
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EBCDIC Codes
ASCII is not the only format in use out there. IBM adopted EBCDIC (Extended Binary Coded Decimal Interchange Code) developed for punched cards in the early 1960s and still uses it on mainframes today. It is probably the next most well known character set due to the proliferation of IBM mainframes. It comes in at least six slightly differing forms, so again here is the most common.
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