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Computer Studies 2020 WAEC Past Questions

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11

In Figure 1, the value of Z when X = 1 and Y=0 is?     

 

 

 

 

  • A.   0.        
  • B. 1.      
  • C. 10.        
  • D. 11.
View Answer & Discuss (9) WAEC 2020
12

A data bus that is capable of transferring 8 bytes of data at once can be rated as?   

 

  • A. a 16-bit data bus.       
  • B. a 32-bit data bus.     
  • C. a 64-bit data bus.       
  • D. an 8- bit data bus.
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13

Which of the following memory types are nonvolatile?

I. PROM II. SRAM II. EEPROM IV. DRAM

 

  • A.    I and lll only     
  • B.  I and IV only       
  • C. Il and ll only       
  • D. IIl and IV only
View Answer & Discuss (1) WAEC 2020
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14

A company known as CIBITO has the following memory modules in four of its computers as shown in Table 1.

Which memory module will be appropriate for graphic design?

   

Table 1

Memory Module

Memory Type

Number of Pins

P SIMM 30
Q SIMM 72
R SO DIMM 72
S DIMM 168

 

  • A. P         
  • B. Q         
  • C. R   
  • D.   S
View Answer & Discuss WAEC 2020
15

One attribute of the Read Only Memory is that it?      

  • A. can be modified.          
  • C. is volatile.      
  • C.  stores the BIOS.      
  • D. stores the POST.
View Answer & Discuss WAEC 2020
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