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Wouldn't keyboard as an input device be considered from the computer's perspective rather than to the user's? The user is "outputting" using these devices; it is the computer that is receiving it as input. --Pengu 19:52, 8 Jun 2005 (UTC)
What is the future of I/O? Where is it headed?. to see this topic added to the article, if someone has appropriate content. Westwind273 21:33, 11 October 2007 (UTC)
Did Ali G write this article or what? I'm no expert on the topic, so I can't swear to the exact grammatical errors, but something's seriously wrong here. —Preceding unsigned comment added by 184.108.40.206 (talk) 22:05, 17 August 2009 (UTC)
This sentence is incomprehensible: "If incase different data formated being exchanged; interface must be able to convert serial data to parallel form and vice-versa."
Is it really required on this page? It seems more like a programming topic than information about what an I/O device is. I think the section should be removed. Verminox (talk) 14:00, 28 November 2009 (UTC)
Memory mapped I/O is not universal
While memory mapped I/O is common in the PC world, it is far from universal. In fact, it is rare in the mainframe world, where various forms of Channel I/O predominate. Shmuel (Seymour J.) Metz Username:Chatul (talk) 18:11, 8 July 2010 (UTC)
I'm no expert on this topic, but the section about ALGOL 68 seems highly specific for an article on this topic. Why is this specific programming language discussed, and not any of the other hundreds of possibilities? There should either be a rationale for this decision or the part could be removed.Wikikrax (talk) 09:48, 7 June 2013 (UTC)