Question

A control feature in a computer system requires the central processing unit (CPU) to send signals to the printer to activate the print mechanism for each character. The print mechanism, just prior to printing, sends a signal back to the CPU verifying that the proper print position has been activated. This type of data transmission is referred to as:

A. Echo control.
B. Validity control.
C. Signal control.
D. Check digit control.

Answer 1

The data transmission method described is referred to as Echo control, ensuring accurate reception and printing in computerized systems.

Step-by-step explanation:

The type of data transmission described in the question, where the central processing unit (CPU) sends signals to activate the print mechanism for each character and the printer, prior to printing, sends a signal back to the CPU to verify the proper print position, is known as Echo control. This process ensures that data is correctly received and printed, contributing to the overall accuracy and reliability of computerized typesetting and printing mechanisms, such as those used in laser printers and ink jet printers.