Consolas is aimed for use in programming environments and other circumstances where a monospaced font is specified. All characters have the same width, like old typewriters, making it a good choice for personal and business correspondance. The improved Windows font display allowed a design with proportions closer to normal text than traditional monospaced fonts like Courier. This allows for more comfortably reading of extended text on screen. OpenType features include hanging or lining numerals; slashed, dotted and normal zeros; and alternative shapes for a number of lowercase letters. The look of text can be tuned to personal taste by varying the number of bars and waves.