Having multiple monitors can be a massive boon to workflows and productivity, with users able to manage multiple windows and programs on separate screens. A version of dual displays goes back as far as IBM 5150 PC, which could support a color and monochrome display , but the latter was limited to text display only. The Apple Macintosh II and Mac Plus had dual monitor support in the more modern sense, with the machines sharing space between the two screens. Weve come a long way from then, or...