10 Questions
Each key on a keyboard is a switch connecting a vertical and horizontal wire, giving a specific location for where the two lines cross.
True
The process of pressing a key includes sending a signal to a keyboard encoder, which handles key bounce and creates a scan code for the key.
True
Mechanical keys work by pushing a rod through an insulated sheet.
False
Capacitive keys detect key presses by changes in capacitance when two plates are brought closer together but not touching.
True
A mechanical mouse contains two rollers at right angles to each other inside the case, which detect changes in the axis.
True
How are mechanical keys different from membrane keys?
Mechanical keys work by completing the circuit when the switch makes contact between two plates, while membrane keys work by pushing a rod through an insulated sheet.
What is the process of converting a key press to an ASCII code?
The keyboard controller receives the code from the keyboard, then does all necessary operations to translate code to ASCII code and sends it to the data bus.
How do capacitive keys detect key presses?
By changes in capacitance when two plates are brought closer together but not touching.
What is the function of rollers inside a mechanical mouse?
To move in any direction and detect changes in axis.
What is the role of a keyboard encoder in the process of pressing a key?
Handling key bounce and creating a scan code for the key.
Test your knowledge about the internal workings of keyboards, including the process of pressing a key and the components involved in transmitting the signal to the computer.
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