Which of the following is a common input device used in computers? [#1482]
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Q1. Which of the following is a common input device used in computers?
Q1. Which of the following is a common input device used in computers?
(A) Monitor
(A) Monitor
(A) Monitor
(B) Printer
(B) Printer
(B) Printer
(C) Keyboard
(C) Keyboard
(C) Keyboard
(D) Speaker
(D) Speaker
(D) Speaker
Answer: (C) Keyboard
Answer: (C) Keyboard
Answer: (C) Keyboard
A keyboard is an input device used to enter data into a computer. It typically has keys representing letters, numbers, symbols, and punctuation.
A keyboard is an input device used to enter data into a computer. It typically has keys representing letters, numbers, symbols, and punctuation.
A keyboard is an input device used to enter data into a computer. It typically has keys representing letters, numbers, symbols, and punctuation.
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Related MCQ Quizzes
Q1. The LCM of two numbers is 40 and their HCF is 4. If the difference between the two numbers is 12, then the sum of the numbers is
Q1. The LCM of two numbers is 40 and their HCF is 4. If the difference between the two numbers is 12, then the sum of the numbers is
(A) 20
(A) 20
(A) 20
(B) 24
(B) 24
(B) 24
(C) 28
(C) 28
(C) 28
(D) 32
(D) 32
(D) 32
Answer: (C) 28
Answer: (C) 28
Answer: (C) 28
X * (X-12) = 40 * 4
X = 20
X + (X-12) = 20 + 20 - 12 = 28
X * (X-12) = 40 * 4 X = 20 X + (X-12) = 20 + 20 - 12 = 28
X * (X-12) = 40 * 4 X = 20 X + (X-12) = 20 + 20 - 12 = 28
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Q2. Which of the following is not a characteristic of a computer?
Q2. Which of the following is not a characteristic of a computer?
(A) Versatility
(A) Versatility
(A) Versatility
(B) Accuracy
(B) Accuracy
(B) Accuracy
(C) Diligence
(C) Diligence
(C) Diligence
(D) Intelligence
(D) Intelligence
(D) Intelligence
Answer: (D) Intelligence
Answer: (D) Intelligence
Answer: (D) Intelligence
While computers can process vast amounts of data and execute complex algorithms to simulate intelligence (Artificial Intelligence), they do not possess inherent intelligence, intuition, or the ability to think, reason, or make decisions based on emotion or consciousness like humans do. Their "intelligence" is derived from the programs and data they are fed.
While computers can process vast amounts of data and execute complex algorithms to simulate intelligence (Artificial Intelligence), they do not possess inherent intelligence, intuition, or the ability to think, reason, or make decisions based on emotion or consciousness like humans do. Their "intelligence" is derived from the programs and data they are fed.
While computers can process vast amounts of data and execute complex algorithms to simulate intelligence (Artificial Intelligence), they do not possess inherent intelligence, intuition, or the ability to think, reason, or make decisions based on emotion or consciousness like humans do. Their "intelligence" is derived from the programs and data they are fed.
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Q3. What is the purpose of a cache memory in a CPU?
Q3. What is the purpose of a cache memory in a CPU?
(A) To store data permanently
(A) To store data permanently
(A) To store data permanently
(B) To connect the CPU to other components
(B) To connect the CPU to other components
(B) To connect the CPU to other components
(C) To speed up data access for the CPU
(C) To speed up data access for the CPU
(C) To speed up data access for the CPU
(D) To display graphics
(D) To display graphics
(D) To display graphics
Answer: (C) To speed up data access for the CPU
Answer: (C) To speed up data access for the CPU
Answer: (C) To speed up data access for the CPU
Cache memory is a small, high-speed memory component located within the CPU. Its primary purpose is to significantly speed up the CPU's access to frequently used data and instructions.
Cache memory is a small, high-speed memory component located within the CPU. Its primary purpose is to significantly speed up the CPU's access to frequently used data and instructions.
Cache memory is a small, high-speed memory component located within the CPU. Its primary purpose is to significantly speed up the CPU's access to frequently used data and instructions.
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Q4. Which is called the brain of the computer?
Q4. Which is called the brain of the computer?
(A) Monitor
(A) Monitor
(A) Monitor
(B) RAM
(B) RAM
(B) RAM
(C) ROM
(C) ROM
(C) ROM
(D) CPU
(D) CPU
(D) CPU
Answer: (D) CPU
Answer: (D) CPU
Answer: (D) CPU
Central Processing Unit (CPU) or Processor..
The CPU is a microprocessor chip containing millions of tiny transistors. It's the CPU's job to perform the calculations necessary to make the computer work the transistors in the CPU manipulate the data.
Central Processing Unit (CPU) or Processor.. The CPU is a microprocessor chip containing millions of tiny transistors. It's the CPU's job to perform the calculations necessary to make the computer work the transistors in the CPU manipulate the data.
Central Processing Unit (CPU) or Processor.. The CPU is a microprocessor chip containing millions of tiny transistors. It's the CPU's job to perform the calculations necessary to make the computer work the transistors in the CPU manipulate the data.
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Q5. How does a computer's operating system manage hardware resources?
Q5. How does a computer's operating system manage hardware resources?
(A) By storing data permanently
(A) By storing data permanently
(A) By storing data permanently
(B) By controlling the flow of data between hardware components
(B) By controlling the flow of data between hardware components
(B) By controlling the flow of data between hardware components
(C) By displaying graphics on the screen
(C) By displaying graphics on the screen
(C) By displaying graphics on the screen
(D) By processing instructions
(D) By processing instructions
(D) By processing instructions
Answer: (B) By controlling the flow of data between hardware components
Answer: (B) By controlling the flow of data between hardware components
Answer: (B) By controlling the flow of data between hardware components
An operating system (OS) acts as a manager for a computer's hardware, ensuring that different programs and tasks can share and use resources like the CPU, memory, and storage devices efficiently.
An operating system (OS) acts as a manager for a computer's hardware, ensuring that different programs and tasks can share and use resources like the CPU, memory, and storage devices efficiently.
An operating system (OS) acts as a manager for a computer's hardware, ensuring that different programs and tasks can share and use resources like the CPU, memory, and storage devices efficiently.
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Q6. Three numbers are in the ratio 3:4:6 and their product is 1944. The largest of the numbers is.
Q6. Three numbers are in the ratio 3:4:6 and their product is 1944. The largest of the numbers is.
(A) 21
(A) 21
(A) 21
(B) 12
(B) 12
(B) 12
(C) 18
(C) 18
(C) 18
(D) 9
(D) 9
(D) 9
Answer: (C) 18
Answer: (C) 18
Answer: (C) 18
18
18
18
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Q7. What is the smallest unit of data in a computer?
Q7. What is the smallest unit of data in a computer?
(A) Byte
(A) Byte
(A) Byte
(B) Bit
(B) Bit
(B) Bit
(C) KB
(C) KB
(C) KB
(D) MB
(D) MB
(D) MB
Answer: (B) Bit
Answer: (B) Bit
Answer: (B) Bit
Bit (Binary Digit)
Bit is the smallest unit of data in a computer.
In bynary units of measurement - 4 Bit = 1 Nibble; 8 Bit = 1 Byte; 1024 Byte = 1 Kibibyte (KiB); 1024 Kibibyte = 1 Mebibyte (MiB); 1024 Mebibyte = Gibibyte (GiB); 1024 Gibibyte = 1 Tebibyte (TiB); 1024 Tebibyte = 1 Pebibyte (PiB); and so on.
In decimal units of measurement - 1000 Byte = 1 Kilobyte (KB); 1000 Kilobyte = 1 Megabyte (MB); 1000 Megabyte = Gigabyte (GB); 1000 Gigabyte = 1 Terabyte (TB); 1000 Terabyte = 1 Petabyte (PB); and so on.
Bit (Binary Digit) Bit is the smallest unit of data in a computer. In bynary units of measurement - 4 Bit = 1 Nibble; 8 Bit = 1 Byte; 1024 Byte = 1 Kibibyte (KiB); 1024 Kibibyte = 1 Mebibyte (MiB); 1024 Mebibyte = Gibibyte (GiB); 1024 Gibibyte = 1 Tebibyte (TiB); 1024 Tebibyte = 1 Pebibyte (PiB); and so on. In decimal units of measurement - 1000 Byte = 1 Kilobyte (KB); 1000 Kilobyte = 1 Megabyte (MB); 1000 Megabyte = Gigabyte (GB); 1000 Gigabyte = 1 Terabyte (TB); 1000 Terabyte = 1 Petabyte (PB); and so on.
Bit (Binary Digit) Bit is the smallest unit of data in a computer. In bynary units of measurement - 4 Bit = 1 Nibble; 8 Bit = 1 Byte; 1024 Byte = 1 Kibibyte (KiB); 1024 Kibibyte = 1 Mebibyte (MiB); 1024 Mebibyte = Gibibyte (GiB); 1024 Gibibyte = 1 Tebibyte (TiB); 1024 Tebibyte = 1 Pebibyte (PiB); and so on. In decimal units of measurement - 1000 Byte = 1 Kilobyte (KB); 1000 Kilobyte = 1 Megabyte (MB); 1000 Megabyte = Gigabyte (GB); 1000 Gigabyte = 1 Terabyte (TB); 1000 Terabyte = 1 Petabyte (PB); and so on.
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Q8. Find the odd letters from the given below
Q8. Find the odd letters from the given below
(A) DCBA
(A) DCBA
(A) DCBA
(B) HGFE
(B) HGFE
(B) HGFE
(C) MNOP
(C) MNOP
(C) MNOP
(D) LKJI
(D) LKJI
(D) LKJI
Answer: (C) MNOP
Answer: (C) MNOP
Answer: (C) MNOP
MNOP
MNOP
MNOP
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Q9. Choose the correctly spelt word.
Q9. Choose the correctly spelt word.
(A) permmited
(A) permmited
(A) permmited
(B) plesent
(B) plesent
(B) plesent
(C) pungant
(C) pungant
(C) pungant
(D) punctuation
(D) punctuation
(D) punctuation
Answer: (D) punctuation
Answer: (D) punctuation
Answer: (D) punctuation
The correctly spelt word is - punctuation.
Punctuation is a system of symbols that are used to clarify the meaning of a piece of writing. It includes marks like commas, periods, question marks, and quotation marks.
The correctly spelt word is - punctuation. Punctuation is a system of symbols that are used to clarify the meaning of a piece of writing. It includes marks like commas, periods, question marks, and quotation marks.
The correctly spelt word is - punctuation. Punctuation is a system of symbols that are used to clarify the meaning of a piece of writing. It includes marks like commas, periods, question marks, and quotation marks.
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Q10. How many prime numbers exist, which are less than 40?
Q10. How many prime numbers exist, which are less than 40?
(A) 10
(A) 10
(A) 10
(B) 11
(B) 11
(B) 11
(C) 12
(C) 12
(C) 12
(D) 13
(D) 13
(D) 13
Answer: (C) 12
Answer: (C) 12
Answer: (C) 12
12
12
12
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