Technical Terms - Hardware (A-Z) - N-Key Rollover

What does N-key rollover refer to?

• Preventing ghosting in keyboards

• Detecting all keystrokes no matter how many keys are pressed simultaneously

• Supporting only one keystroke at a time

• Limiting the number of keys that can be pressed simultaneously

What is ghosting in keyboards?

• Supporting multiple simultaneous keystrokes

• A feature of high-end keyboards

• Extra keystroke registered when multiple keys are pressed together

• Recording every keystroke accurately

What happens in a basic keyboard when multiple keys are pressed at the same time?

• No keys are registered

• All keystrokes are accurately recorded

• Some keystrokes may not be registered

• Only one key is registered

What is the x-key rollover?

• A limit to the number of keystrokes

• Number of keys that can be pressed and recorded simultaneously

• A type of ghosting in keyboards

• A feature found in inexpensive keyboards

Where is N-key rollover typically found?

• High-end keyboards, such as gaming keyboards used in eSports

• Keyboards with ghosting issues

• Basic keyboards

• Inexpensive keyboards

What is the significance of N-key rollover for gamers?

• Registering all input accurately while playing video games

• Limiting the number of keystrokes

• Preventing ghosting issues

• Supporting only one keystroke at a time

What is the limit of simultaneous keystrokes initially supported by the USB interface?

• 6 simultaneous keystrokes plus 4 modifier keys

• No limit

• 10 simultaneous keystrokes

• 2 simultaneous keystrokes

What is the modern USB interface's capability regarding simultaneous keystrokes?

• Allowing 8 simultaneous keystrokes

• Supporting only 1 simultaneous keystroke

• Limiting to 5 simultaneous keystrokes

• No limit

Why is N-key rollover essential for gamers?

• To support only one keystroke at a time

• To prevent ghosting issues

• To limit the number of keystrokes

• To register all the input accurately while playing video games

What type of keyboards typically have N-key rollover feature?

• Basic keyboards

• Keyboards with ghosting issues

• Inexpensive keyboards

• High-end keyboards, such as gaming keyboards used in eSports