16. A device that can accept data, hold them&deliver them on demand at a later time is known as
A. Buffer
B. Memory
C. CPU
D. Register
E. None of the above
17. A magnetic tape volume that is used on a data processing operation without any change to its contents is
A. Magnetic disk
B. Punched paper tape
C. Master tape
D. Card reader
E. None of the above
18. An output device that converts data from a binary format in main storage to coded hole patterns punched into a paper tape is
A. Paper tape punch
B. Punched paper tape
C. Magnetic disk
D. Magnetic tape.
E. None of the above
19. A computer performs operations by comparing data items and then, depending on the results, follows predetermined course of action. What are such operations called?
A. Sequential
B. Logical
C. Digital
D. Physical
E. None of the above
20. A file that includes an index directory to facilitate random access is
A. Sequential file
B. Indexed file
C. Random file
D. Serial file
E. None of the above