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 mechanism of how a computer keyboard works to identify why this sequence is correct:

1. Completing the Circuit (D): Underneath the keyboard keys, there is a grid of circuits called a key matrix. When you press a key, the switch under that key closes, completing an electrical circuit.

2. Flow of Current (E): Once the circuit is closed, it allows electrical current to flow through the connection, signaling to the keyboard's microprocessor that a keypress event has occurred.

3. Calculating the Location (B): The microprocessor continuously scans the rows and columns of the key matrix. By detecting which specific row and column line has the active current flow, the exact location (matrix coordinates) of the pressed key is calculated.

4. Comparing with a Character Map (C): Once the location is calculated, the keyboard controller refers to a lookup table stored in memory known as a character map. This map associates each grid coordinate on the keyboard with a specific key or symbol.

5. Finding the Binary Value (A): Finally, the character map translates the physical location into the corresponding binary value (such as an ASCII or Unicode code) that the computer's operating system can interpret and display on the screen.

Therefore, filling in the blanks in order gives: Circuit (D), Current (E), Calculated (B), Character (C), and Binary (A), making the correct sequence D, E, B, C & A.