46. The time lag, between the keying of the last character on the keyboard input and the appearance of the first output character on the screen, is known as
A. Key
B. System review
C. response time
D. batch Processing
E. None of the above
47. Which of the following is not a characteristic of a system?
A. operates for some purpose
B. has homogeneous components
C. operates within a boundary
D. has interacting components
E. None of the above
48. The main purpose of the system investigation phase is to produce
A. a design report
B. a requirement report
C. a feasibility report
D. All of the above
E. None of the above
49. The model base cannot be prepared until
A. the computer has been selected
B. the MIS staff has been acquired and organized
C. the preparation of physical facilities
D. both (a) and (b)
E. None of the above