53. Instructions and memory address are represented by A) Character code B) Binary codes C) Binary word D) Parity bit 54. The terminal device that functions as a cash register, computer terminal, and OCR reader is the: A) Data collection terminal B) OCR register terminal C) Video Display terminal D) POS terminal 55. A set of flip flops integrated together is called_ A) Counter B) Adder C) Register D) None of the above 56. People often call_ A) Control Unit B) Arithmetic Logic Unit C) Central Processing Unit D) Storage Unit as the brain of computer system