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Computer Studies 2020 WAEC Past Questions

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46

The decimal fraction 0.9375 converts to binary?      

  • A. 0.0111.     
  • B.  0.1011.     
  • C.  0.1111.      
  • D. O.1001.
View Answer & Discuss (1) WAEC 2020
47

The EBCDIC coding system was developed on?   

  • A.  IBM mainframe computers.        
  • B. HP mainframe and minicomputers.     
  • C.  Dell mainframe computer      
  • D. Apple mainframe computers.
View Answer & Discuss (3) WAEC 2020
48

Which of the following is not a criterion files?     

  • A.  Nature of content        
  • B. Organizational method      
  • C. Storage medium      
  • D. Type of data
View Answer & Discuss (4) WAEC 2020
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49

Which of the following options best shows the arrangement of file structure?   

I File

ll. Field

III. Character

IV, Record

   

  • A. III, II, I and IV
  • B. II, III, I  and IV
  • C. IlI, II, IV and I
  • D. II, III, IV and I
View Answer & Discuss (5) WAEC 2020
50

 

Which of the following statements best describes sequential file organization?     

  • A.  Records are arranged in no particular order.        
  • B. Records are directly addressed to the key value.         
  • C. Records are sorted according to a key field.     
  • D.  Records are used as index to access the database.
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