21. The MIS consists of
A. the central processing unit of the computer only.
B. the central processing unit of the computer and input/output units only
C. the central processing unit of the computer, input/output units, and data storage units only
D. All of the above
E. None of the above
22. A _____ is a program that serves as an interface between application program and a set of coordinated and integrated files called a database.
A. DDS
B. DBMS
C. MIS
D. Control
E. None of the above
23. Which of the following is not tree about expert systems?
A. Expert systems are collections of human knowledge
B. Export systems are expensive to design.
C. export systems are usually designed to run on small general-purpose computers
D. Maintenance support may be difficult to obtain for an expert system.
E. None of the above
24. A spreadsheet package is one type of _____ support tool.
A. operational
B. decision
C. success
D. simulation
E. None of the above
25. A turnaround document can be a (n)
A. punched card
B. OCR document
C. both (a) and (b)
D. neither (a) nor (b)
E. None of the above