What is token?? Elaborate briefly

Question

I want the answer of this question

Answer 1

A token is source-program text that the compiler does not break down into component elements.
The keywords, identifiers, constants, string literals, and operators are the examples of tokens. Punctuation characters such as brackets ([ ]), braces ({ }), parentheses ( ( ) ), and commas (,) are also tokens.

Answer 2

http://www.cppforschool.com/tutorial/basic.html
look for Tokens, keywords, identifiers, literals in thepage linked.