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NAND is a complement of ________.
Question 1Answer

a.
AND

b.
OR

c.
NOT

d.
XOR

Question 2
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Solve using identities of boolean aldebra: ABC + AB'C + ABC' + AB'C'.
Question 2Answer

a.
B+AC' 

b.
C' 

c.
A+ B(A+C) 

d.
A

Question 3
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An example of application software designed for word processing is________.
Question 3Answer

a.
Microsoft Windows

b.
Adobe Photoshop

c.
Microsoft Word

d.
Linux

Question 4
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Convert decimal number 221 to octal.
Question 4Answer

a.
436 

b.
638 

c.
335 

d.
502 

Question 5
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Which software classification do operating systems and device drivers belong?
Question 5Answer

a.
System software

b.
Application software

c.
Embedded software

d.
Productivity software

Question 6
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Convert the binary number (1110100101) to decimal number.
Question 6Answer

a.
423

b.
845

c.
933

d.
205

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What does data persistence refer to in the context of secondary storage devices? 
Question 7Answer

a.
The ability to write in multiple languages

b.
The capacity to store large amounts of data

c.
The ability to retain data over time

d.
The speed of data access

Question 8
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What is the primary advantage of simplifying Boolean expressions using Boolean algebra laws in the context of digital circuits?
Question 8Answer

a.
To increase the size of the circuit 

b.
To decrease the efficiency of the circuit 

c.
To reduce the number of logic gates and optimize the circuit 

d.
To introduce errors in the circuit 

Question 9
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The stored-program concept allows computers to store and execute instructions from memory.
Question 9Answer

a.
TRUE

b.
FALSE

Question 10
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Which coding scheme uses 7 bits to represent characters? 
Question 10Answer

a.
ASCII 

b.
BCD 

c.
Unicode 

d.
EBCDIC 

Question 11
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Convert decimal number 876.242 to binary number.
Question 11Answer

a.
1101101100.00111101 

b.
011011110.00111101  

c.
1101101100.0111111 

d.
1000010001.1000100 

Question 12
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An example of system software is _________.
Question 12Answer

a.
Microsoft Word

b.
Photoshop

c.
Windows operating system

d.
Adobe Acrobat Reader

Question 13
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How is a number typically converted from decimal to binary? 
Question 13Answer

a.
Division by 2 

b.
Division by 4 

c.
Division by 8 

d.
Division by 16 

Question 14
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Which method is used to convert binary numbers to octal numbers? 
Question 14Answer

a.
Division by 2 method 

b.
Division by 8 method 

c.
Grouping by 3 method 

d.
Grouping by 4 method 

Question 15
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How many bits per character does an ASCII code use?
Question 15Answer

a.
6

b.
7

c.
8

d.
9