O

one's complement::The arithmetic operation in which all 1 bits are converted to 0 bits and vice versa. The tilde character (~) is the one's-complement operator.

operand::A constant or variable value that is manipulated in an expression.

operator::One or more symbols that specify how the operand or operands of an expression are manipulated. See “unary operator,” “binary operator,” and “ternary operator.”

origin::The point on the screen at which the x and y coordinates are both equal to 0. On the physical screen, the origin is at the upper left corner.