A Control Feature in a Computer System Requires the Central

Multiple Choice

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.