512 characters can be represented in ASCII-8.
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False
Reason — ASCII-8 uses 8 bits, allowing for a total of 256 characters to be represented.
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(128)8 is the representation of an octal number system.
The first 128 characters are the same in both the types of ASCII, i.e., ASCII-7 and ASCII-8.
Unicode provides a consistent way of encoding multilingual plain text.
ABC is a valid Hexadecimal number.