A = 0x41 = 65
B = 0x42 = 66
C = 0x43 = 67
...
Y = 0x59 = 89
Z = 0x5A = 90
However, note that depending on a particular numeric or bit value for a character is not always portable. It depends on the implementation.
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From 'A' to 'Z' would be from 0x41 to 0x5A in ASCII table.
From 'a' to 'z' would be from 0x61 to 0x7A in ASCII table.
D =44 e = 65 b = 61 r =72 a = 61
In binary: 10100010 11101010 11010010 11011100 11011100 00000000 In hexadecimal: 0x5175696E6E00 10100010 = 0x51 = 'Q' (ASCII character code 81 decimal) 11101010 = 0x75 = 'u' (ASCII character code 117 decimal) 11010010 = 0x69 = 'i' (ASCII character code 105 decimal) 11011100 = 0x6E = 'n' (ASCII character code 110 decimal) 11011100 = 0x6E = 'n' (ASCII character code 110 decimal) 11011100 = 0x00 = 0 (ASCII character code 0 decimal - null-terminator)
It is the apostrophe or single quote character ('). It has the ASCII code 0x27 (39 decimal).
70
The American Standard Code for Information Interchange was made to standardize 128 numeric codes that represent the English letters, Symbols, and Numbers. Any USA keyboard is made with this standard in mind.