![]() The type number does not guarantee that every product bearing it is the same. ![]() A PS/2 to USB converter may not be able to handle the required data throughput.If you can suggest me any interesting keyboards, I will list them here. When purchasing a keyboard, make sure you can return it. Having experienced myself, "should" does not equal "is". Do not take my word for it and do your own research. And a maximalistic price.Īll keyboards listed are supposed to have full n-key rollover. ![]() USB keyboard with 6-key rolloever full n-key rollover when connected through PS/2 ![]() This rarity is the cream of the crops, because/but it clicks very loudly.Ī modern reincarnation of the IBM Model M, $129. IBM Model M (Update: rollover may vary per series).Aren't professional writers annoyed with 3-key rollovers? And what about braillists, who need at least a 6-key rollover? Really, I expected more from this category. Logitech G15/G11 Full n-key (Update: 6-key + modifier)(Update 2: no rollover at all?!).They risk upsetting the complete gaming community. On the other hand, manufacturers will think twice selling crap to (semi-)pro gamers. Usually too big and bloated for tracking. We will have to move on to niche markets. Relatively few people need more than a 3-key rollover keyboard, so we can skip all mainstream keyboards. Where can I get a full n-key rollover keyboard? Some manufacturers advertise the shortcoming as a feature, eg. Modern keyboard, including those expensive multimedia keyboards, are typically 3-key rollovers. The simplified design allows only the most frequently used key combos. They save $0.07 per key by replacing the individual diodes of each key with a matrix of key switches. Over the course of years, keyboard manufacturers have sought to simplify the keyboard design. The "n-key" part means that any number of keys can be pressed simultaneously.įull n-key rollover keyboards are nowadays hard to find. Alpha n-key rollover refers to alphanumeric, which includes all letters and numbers. Full n-key rollover is the least restrictive type: each key has dedicated electronics. This property is called full n-key rollover. ![]() Regardless of the number of keys pressed, all keys would have been accepted in the correct order. In the days of old (the digital world is moving fast), each key press was interpreted independently. Enable Javascript to count the number of simultaneously accepted keys)Ī good keyboard with a so-called full n-key rollover should allow you to enter all keys simultaneously. All keys have to be pressed at the exact same moment. Try entering different combinations of alphanumeric keys in the textbox, like r-y-u and e-r-x-c. That is what it means for a keyboard to have no "rollover". If you have no idea what I am talking about, imagine being able to press at most one key at a time. But is the software to blame, or the hardware? Specific groups of people experience that same problem. In summary: certain combinations of keys are blocked. This specific example was brought up in the forum topic Playing Chords. And you probably have noticed chord playing does not always go smoothly with the pc keyboard: when you play some chords, some notes are missing. ![]()
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