If you press the key corresponding to letter A on the keyboard, what process is carried out inside the CPU to display the letter on the screen?

A) The CPU stores the keystroke as the letter 'A' and displays it on the screen.
B) The keyboard transfers the letter 'A' directly to the monitor, without passing through the CPU.
C) 'A' is converted to binary code, which the CPU processes.The computer then converts the code back 'A' for display.
D) 'A' is converted to special characters, which the screen translates back to 'A' for display.

When a key is pressed on the keyboard, the corresponding letter is converted into binary code by the keyboard controller. This code is then sent to the CPU which interprets it and determines the corresponding character to display on the screen. The CPU then sends the character code to the video card or integrated graphics, which translates the code into the appropriate pixels to display on the screen. Therefore, option C is the correct choice as it describes the accurate process of converting the letter 'A' into binary code and processing it through the CPU.