key rollover often referred to as ghosting by the marketing Departments of
keyboard manufacturers which by the way is an incorrect use of the term ghosting
but we'll talk about that in a bit is a measure of how many key presses can be
registered simultaneously by a keyboard
it's represented using the format of X key rollover where X is the value that
represents the number of keys that can be pressed simultaneously the max
rollover rating a keyboard can have is n key rollover or nkro which signifies
that every key on the keyboard can be pressed simultaneously and every single
one of them will be registered by your computer now let's go back to ghosting
for a second it has a few meanings nowadays traditionally and this is the
proper definition ghosting refers to an extra third key press being registered
on your computer as a result of two completely unrelated Keys being pressed
simultaneously on your keyboard so you're typing away and you hit a and L
at the same time and on your screen a l and
I or some other third letter would pop
up this is extremely rare on any type of
modern keyboard so when you see anti- ghosting on the packaging for your new
keyboard what the manufacturer is often referring to is a very weak three key
rollover implementation that sometimes doesn't even cover the whole keyboard
and offers only partial coverage on certain keys that users are likely to
press together like W A and G for FPS
Gamers typically this kind of anti- ghosting is only seen on inexpensive
rubber Dome or membrane keyboards a quick side note here though guys is that
if you want to test out what value of key rollover your keyboard actually has
Microsoft of all people has an awesome tool to do so online there's a link in
the video description so be sure to check that out now back to rollover it's
not just membrane keyboards with shoddy implementations here even on mechanical
keyboards until recently users were often surprised to find that full End
Key rollover only worked on the dated PS2 connector with the USB interface
only being capable of six key rollover which can register up to six letter keys
and four modifiers at the same time which is why many hardcore mechanical
keyboard fans have stuck with PS2 and why some mechanical keyboard
manufacturers still include PS2 adapters in the packaging for their keyboards in
recent years however new developments have allowed full End Key rollover to be
functional over USB which is why companies like ducky and Corsair can
offer it on their keyboards no matter which plug you're using so the astute
among you might be asking yourselves by this point in the video is n key
rollover even necessary I mean it's certainly cool you know and for geeks
like me you know more technology is more better but outside of some very specific
cases like programs that allow you to use your keyboard as a piano probably
not in my personal experience including gaming word processing web browsing and
Hardware testing I've yet to really feel like I needed to press more than and six
letter keys and four mon fires all at the same time but let us know in the
comments if you can think of some situations where it would be important
to you like uh that time you wrote a letter with your
face speaking of your face do you ever wake up in the morning reach for your
razor and realize that it has turned into a rusty dangerous mess but you just
shave with it anyway because you don't want to go to the trouble of going to a
store finding an employee asking them to unlock the razors which are behind a you
know an indestructible sheet of plexiglass cuz apparently no one in the
adult world can be trusted to have access to sharp objects if so really
Luke I already gave you some Dollar Shave Club razors and if you happen to
not be luke then never worry about that hassle Again by subscribing to today's
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