Identify the correct order of the terms 1-5 given below that completes the paragraph describing a method of operation for a keyboard. A computer keyboard has a key matrix underneath the keys; when a key is pressed it presses a switch that completes a ___. This allows ___ to flow. The location of the key pressed is ___. The location is compared to a ___ map to find the ___ value for the key that has been pressed.
1.Binary
2.Calculated
3.Character
4.Circuit
5.Current
A5, 4, 2, 3, 1
B4, 5, 2, 3, 1 ✓ Correct
C3, 4, 2, 5, 1
D1, 5, 2, 3, 4
Correct answer: (B) 4, 5, 2, 3, 1
Explanation
Pressing a key closes a switch that completes a Circuit, term 4.
Completing the circuit then allows Current to flow, term 5.
The location of the pressed key is Calculated, term 2.
That location is compared to a Character map, term 3.
The map yields the Binary value for the key pressed, term 1.
This gives the order 4, 5, 2, 3, 1 across the blanks.
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