We have two types of comments here, the end-of-line comment and the block comment. An end-of-line comment terminates at the end of the line. A block line comment has a terminator and can continue for several lines, or be less than one line. Comments were called REMarks in BASIC.
Some programming languages employ both block and line comments with different comment delimiters. For example, C++ has block comments delimited by /* and */ that can span multiple lines and line comments delimited by // . Other languages support only one type of comment.
