What is the ASCII code chart? Codes 0 to 31 are not used for characters They are called control characters because they are used for actions like:. Carriage return (CR). Bell (BEL). Codes 65 to 90 ...

in which case, I guess Ctrl keys are something that came after the ascii standard and aren't part of it. but it's not just the control keys. It is using character 26 as EOF, when in ascii it's SUB ...

A control character in a document that represents movement to the next tab stop. In the ASCII character set, a horizontal tab is ASCII 9, and a vertical tab is ASCII 11. See ASCII chart. THIS ...

In communications, a control character that is transmitted to request a response from the receiving station. In ASCII code, the enquiry ("enq") character is hex 05; in EBCDIC, it is 2D. See ASCII ...