> Clearly computer have introduced a lot more symbols to the keyboard, but for whatever reason, the em-dash wasn't one of them Forms distinguished by width wer

> Clearly computer have introduced a lot more symbols to the keyboard, but for whatever reason, the em-dash wasn't one of them Forms distinguished by width weren’t added to computer keyboards as separate keys because computer keyboards, like typewriters, solidified when computer displays were monospaced. (And, like other forms like proper opening and closing quotes, limited space on the keyboard was a concern.)