Computer Studies Past Questions

Study and practice Computer Studies past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

951 questions JAMB 292 WAEC 597 NECO 60 CUSTOM 2
Download PHP app Ask a Question Check Syllabus Past Question Videos Topic Video Lessons

Take a test

Past Questions

951 questions
Question 1 of 20 951 total questions
Question 291
waec 2020

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

 

Aa 16-bit data bus.       
Ba 32-bit data bus.     
Ca 64-bit data bus.       
Dan 8- bit data bus.
View Explanation & Discuss
Question 292
waec 2020

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

 

 

 

 

A  0.        
B1.      
C10.        
D11.
View Explanation & Discuss
Question 293
waec 2020

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

 

 

A  0.        
B1.      
C10.        
D11.
View Explanation & Discuss
Question 294
waec 2020

which of the following logic operations would select a record when at least one condition is satisfied?        

 

AAND     
BNOR     
CNOT     
DOR
View Explanation & Discuss
Question 295
waec 2020

Handwritten letters, typeset documents or printout Characters can be read into the computer by?       

A Barcode Reader.       
BMagnetic Ink Character Recognition.       
COptical Character Recognition.     
DOptical Mark Reader.
View Explanation & Discuss
Question 296
waec 2020

Arrange the following inventions in chronological order.

I. Slide Rule ll. Pascaline llI. Analytical Engine IV. Difference Engine

 

A I, II, IV and IIl         
B I, IV, III and Il            
CIII, IV, II and I       
DI, II, III and IV
View Explanation & Discuss
Question 297
waec 2020

Pascal's calculating machine was useful in?    

Aaddition and subtraction only.     
B division only.     
Cmultiplication and division only.     
Dmultiplication only. 
View Explanation & Discuss
Question 298
waec 2020

Under classification by data representation. computers can be?      

Aanalogue, digital and hybrid.     
Bhybrid, mainframes and analogue.    
Cmini- computers, digital and supercomputers.       
D supercomputers and mini-computers.
View Explanation & Discuss
Question 299
waec 2020

Choose the incorrect statement about microcomputers?   

AA microcomputer can be placed on a single silicon chip.
BA microcomputer can have more processing capability than a mainframe model.
CROM chips may be used in micros to permanently store program instruction.
DMost micros use rigid disk storage devices rather than floppy disk drives.
View Explanation & Discuss
Question 300
waec 2020

The equivalent of the decimal number 89 in base 4 is?    

A1021.      
B1201.     
C1211.     
D1121.
View Explanation & Discuss
Question 301
waec 2020

The communication of knowledge, concepts and ideas is referred to as?    

Ainformation processing.    
Binformation transmission.   
Ctelecasting.   
D webcasting.
View Explanation & Discuss
Question 302
waec 2020

Which of the following is not a step involved in data conversion?

 

A Input   
BOutput     
CProcess     
DTransfer
View Explanation & Discuss
Question 303
waec 2019

Password reset disk should be created?   

A every time the user changes password.     
Bonce only.   
Conly when the user forgets the password.   
D twice only
View Explanation & Discuss
Question 304
waec 2019

A computer program that gathers information about a person or organization without their knowledge or consent is known as?   

A Adware.      
BTime Bomb.     
C Malware.   
D Spyware.
View Explanation & Discuss
Question 305
waec 2019

Which of the file organization methods can be accessed both randomly and sequentially?     

ADirect files     
B Indexed sequential files      
CRandom files   
D Sequential files
View Explanation & Discuss
Question 306
waec 2019

Effects of file insecurity include the following except?   

Avirus infection.     
Bfile corruption.     
Cencrypted data       
Ddata loss.
View Explanation & Discuss
Question 307
waec 2019

The following actions are sources of breaches in computing except?   

Acarelessness     
Bhackers' threat.   
C piracy.     
Dviruses.
View Explanation & Discuss
Question 308
waec 2019

In BCD encoding system, 25, will be represented as?   

A01100101       
B01010110.       
C00100101.   
D0101001.
View Explanation & Discuss
Question 309
waec 2019

Multiply 101\(_2\) by 11\(_2\)       

 

 

 

A1001\(_2\)     
B1011\(_2\)       
C1110\(_2\)     
D1111\(_2\)
View Explanation & Discuss
Question 310
waec 2019

A bit as used in computing in digital communication is?      

Aa decimal digit.     
Ban octal digit.      
Ca bin digit.   
D.a hexadecimal digit.
View Explanation & Discuss
Question Navigator
Current
MathsFaculty