CO001Computer Organisation • CPU
Most ImportantEasy
Q1.The CPU is often called the ______ of the computer.
A
memory
B
brain
Correct answer
C
screen
D
keyboard
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CO002Computer Organisation • CPU
Most ImportantMedium
Q2.Which part of the CPU performs arithmetic and logical operations?
A
Control Unit
B
ALU (Arithmetic Logic Unit)
Correct answer
C
Register
D
Cache
CO004Computer Organisation • Memory
Most ImportantMedium
Q3.RAM is a type of memory that is:
A
permanent and non-volatile
B
volatile (loses data when power is off)
Correct answer
C
read only
D
a secondary storage device
CO005Computer Organisation • Memory
Most ImportantMedium
Q4.ROM is best described as:
A
volatile read-write memory
B
non-volatile memory that mainly stores permanent instructions
Correct answer
C
the fastest memory in the CPU
D
a printer buffer
CO010Computer Organisation • Volatile memory
Most ImportantEasy
Q5.Which memory loses all its data when the computer is switched off?
A
ROM
B
Hard disk
C
RAM
Correct answer
D
CD-ROM
CO011Computer Organisation • Units
Most ImportantEasy
Q6.How many bits make up one byte?
A
4
B
8
Correct answer
C
16
D
32
CO013Computer Organisation • Units
Most ImportantEasy
Q7.One kilobyte (1 KB) is equal to:
A
1000 bytes
B
1024 bytes
Correct answer
C
8 bits
D
1024 bits
CO003Computer Organisation • CPU
ImportantMedium
Q8.Which part of the CPU directs and coordinates all the operations of the computer?
A
ALU
B
Control Unit
Correct answer
C
RAM
D
Hard disk
CO006Computer Organisation • Memory
ImportantMedium
Q9.Which memory is the fastest and is located inside or closest to the CPU?
A
Hard disk
B
RAM
C
Cache / register
Correct answer
D
Pen drive
CO007Computer Organisation • Memory
ImportantMedium
Q10.Cache memory is placed between the CPU and main memory to:
A
store data permanently
B
speed up access to frequently used data
Correct answer
C
print documents
D
connect to the internet
CO008Computer Organisation • Memory type
ImportantMedium
Q11.RAM and ROM are examples of:
A
secondary memory
B
primary (main) memory
Correct answer
C
input devices
D
output devices
CO009Computer Organisation • Secondary storage
ImportantEasy
Q12.Which of the following is a secondary storage device?
A
RAM
B
Cache
C
Hard disk drive
Correct answer
D
ALU
CO012Computer Organisation • Units
ImportantMedium
Q13.One nibble is equal to how many bits?
A
2
B
4
Correct answer
C
8
D
16
CO014Computer Organisation • Units
ImportantMedium
Q14.One megabyte (1 MB) is equal to:
A
1000 KB
B
1024 KB
Correct answer
C
1024 bytes
D
1024 GB
CO015Computer Organisation • Units
ImportantEasy
Q15.The smallest unit of data in a computer is a:
A
byte
B
nibble
C
bit
Correct answer
D
word
CO016Computer Organisation • Units order
ImportantMedium
Q16.Which of the following memory units is the LARGEST?
A
Kilobyte (KB)
B
Megabyte (MB)
C
Gigabyte (GB)
D
Terabyte (TB)
Correct answer
CO017Computer Organisation • Classification
ImportantMedium
Q17.Which type of computer is the fastest and most powerful?
A
Microcomputer (PC)
B
Minicomputer
C
Mainframe
D
Supercomputer
Correct answer
CO019Computer Organisation • I/O devices
ImportantEasy
Q18.Which of the following is an INPUT device?
A
Monitor
B
Printer
C
Keyboard
Correct answer
D
Speaker
CO020Computer Organisation • I/O devices
ImportantEasy
Q19.Which of the following is an OUTPUT device?
A
Mouse
B
Scanner
C
Monitor
Correct answer
D
Keyboard
CO018Computer Organisation • Classification
OtherMedium
Q20.A personal desktop computer belongs to which category?
A
Supercomputer
B
Mainframe
C
Microcomputer
Correct answer
D
Minicomputer