Q1
Q1 What is the primary function of the Central Processing Unit (CPU) in a computer system?
To manage and store data permanently
To perform calculations and execute instructions
To display information to the user
To provide network connectivity
Q2
Q2 Which of the following is considered the brain of the computer?
RAM
Hard Drive
CPU
Motherboard
Q3
Q3 What is the main purpose of an operating system?
To perform calculations
To manage computer hardware and software resources
To display graphics
To store data
Q4
Q4 Which of the following is an input device?
Monitor
Printer
Keyboard
Speaker
Q5
Q5 What type of memory is volatile and loses its contents when power is turned off?
ROM
Flash Memory
RAM
Hard Drive
Q6
Q6 Which of the following best describes the function of BIOS in a computer system?
Manages data storage
Initializes hardware during booting
Runs applications
Provides internet access
Q7
Q7 Which component of the computer is responsible for executing instructions from computer programs?
RAM
Hard Drive
CPU
Network Card
Q8
Q8 Which of the following describes the function of the motherboard in a computer system?
Stores data
Processes instructions
Connects and allows communication between various components
Displays output
Q9
Q9 Which of the following is the correct binary representation of the decimal number 10?
1010
1001
1100
1110
Q10
Q10 A user reports that their computer is running slowly and often freezes.
What is the most likely cause of this issue?
The computer's hardware is outdated
The operating system is not updated
The computer has insufficient RAM or a failing hard drive
The computer's graphics card is faulty
Q11
Q11 What is the base of the binary number system?
2
8
10
16
Q12
Q12 Which of the following number systems is commonly used in digital electronics and computing?
Decimal
Binary
Octal
Hexadecimal
Q13
Q13 In the hexadecimal number system, which digit follows 9?
A
B
C
D
Q14
Q14 What is the binary equivalent of the decimal number 5?
0010
0101
1001
1101
Q15
Q15 Which of the following best describes the octal number system?
Base-2
Base-8
Base-10
Base-16
Q16
Q16 Convert the binary number 1101 to its decimal equivalent.
10
11
12
13
Q17
Q17 What is the hexadecimal representation of the binary number 1111?
9
A
B
F
Q18
Q18 How many unique values can be represented by 4 bits in binary?
8
12
16
32
Q19
Q19 Which of the following is the correct binary representation of the decimal number 20?
10100
10010
11010
11100
Q20
Q20 Convert the decimal number 7 to its binary equivalent.
0010
0100
0111
1000
Q21
Q21 Convert the hexadecimal number A3 to its binary equivalent.
10100011
11010011
10011100
10110101
Q22
Q22 A student converts a binary number 101010 to decimal but gets the result as 41.
What is the correct result?
34
40
42
44
Q23
Q23 Which component of a computer is responsible for processing data?
RAM
CPU
Motherboard
Hard Drive
Q24
Q24 What type of device is a keyboard?
Input
Output
Storage
Processing
Q25
Q25 Which component stores the operating system and files for long-term use?
RAM
CPU
Hard Drive
Power Supply
Q26
Q26 What is the purpose of a power supply unit (PSU) in a computer?
To process data
To store data
To provide power to the computer
To display images
Q27
Q27 Which of the following best describes the function of a motherboard?
Stores data
Connects all components and allows communication
Processes data
Provides power
Q28
Q28 Which component is primarily responsible for cooling the CPU?
RAM
Power Supply
Fan/Heat Sink
Motherboard
Q29
Q29 What is the main function of the RAM in a computer system?
To store data permanently
To execute instructions
To provide temporary storage for active processes
To connect components
Q30
Q30 Which of the following is the binary representation of the command to access the first byte of memory?
00000001
00000000
11111111
10000000
