Identify the correct order of the term A-E 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 follow. The location of the key pressed is _______. The location of the key pressed is compared to a _______ map to find the _______ value for the key that has been pressed.

(A) Binary

(B) Calculated

(C) Character

(D) Circuit

(E) Current

Choose the correct answer from the options given below:

The correct answer is D, E, B, C & A.

Let us understand the step-by-step method of how a keyboard operates and fill in the blanks using the given terms:
(A) Binary
(B) Calculated
(C) Character
(D) Circuit
(E) Current

Step 1: Completing the circuit
When a key is pressed, it pushes down a switch underneath the key matrix. This physical contact completes an electrical path, which is known as a circuit (Term D). Hence, the first blank is completed by circuit.

Step 2: Flow of electrical current
Once the circuit is completed, it allows electricity, i.e., an electrical current (Term E), to flow through the completed path. Hence, the second blank is completed by current.

Step 3: Finding the key location
The keyboard controller continuously monitors the key matrix. By detecting where the current flows, the precise row and column position—meaning the location of the key pressed—is calculated (Term B). Hence, the third blank is completed by calculated.

Step 4: Mapping to the character
Once the coordinate location is determined, it is referenced against a look-up table or character map (Term C) stored in the keyboard's memory. Hence, the fourth blank is completed by character.

Step 5: Outputting the binary value
The character map translates the physical location into a digital representation, which is the binary value (Term A) representing that specific key (e.g., its ASCII code). This binary data is then sent to the computer. Hence, the fifth blank is completed by binary.

Putting it all together, the paragraph reads:
"A computer keyboard has a key matrix underneath the keys when a key is pressed, it presses a switch that completes a circuit (D). This allows current (E) to follow. The location of the key pressed is calculated (B). The location of the key pressed is compared to a character (C) map to find the binary (A) value for the key that has been pressed."

This corresponds directly to the sequence D, E, B, C & A.