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. Which of the following computer language is written in binary codes only?
Q1. Which of the following computer language is written in binary codes only?
(A) Assembly Language
(A) Assembly Language
(A) Assembly Language
(B) High-level Language
(B) High-level Language
(B) High-level Language
(C) Machine Language
(C) Machine Language
(C) Machine Language
(D) C
(D) C
(D) C
Answer: (C) Machine Language
Answer: (C) Machine Language
Answer: (C) Machine Language
Machine language is the only computer language that is directly written and understood in binary codes (sequences of 0s and 1s). It is the lowest-level programming language and is specific to the computer's architecture. Every instruction that the CPU executes is in machine code. Assembly language uses mnemonics to represent machine code instructions, making it slightly more human-readable than raw binary, but it still requires an assembler to translate it into machine code. High-level languages are much more abstract and human-readable, requiring compilers or interpreters to translate them into machine code before execution.
Machine language is the only computer language that is directly written and understood in binary codes (sequences of 0s and 1s). It is the lowest-level programming language and is specific to the computer's architecture. Every instruction that the CPU executes is in machine code. Assembly language uses mnemonics to represent machine code instructions, making it slightly more human-readable than raw binary, but it still requires an assembler to translate it into machine code. High-level languages are much more abstract and human-readable, requiring compilers or interpreters to translate them into machine code before execution.
Machine language is the only computer language that is directly written and understood in binary codes (sequences of 0s and 1s). It is the lowest-level programming language and is specific to the computer's architecture. Every instruction that the CPU executes is in machine code. Assembly language uses mnemonics to represent machine code instructions, making it slightly more human-readable than raw binary, but it still requires an assembler to translate it into machine code. High-level languages are much more abstract and human-readable, requiring compilers or interpreters to translate them into machine code before execution.
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Q2. How does a computer's operating system manage hardware resources?
Q2. 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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Q3. If the sum of five consecutive numbers is 190, then the lowest number amongst them is
Q3. If the sum of five consecutive numbers is 190, then the lowest number amongst them is
(A) 40
(A) 40
(A) 40
(B) 19
(B) 19
(B) 19
(C) 38
(C) 38
(C) 38
(D) 36
(D) 36
(D) 36
Answer: (D) 36
Answer: (D) 36
Answer: (D) 36
36
36
36
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Q4. Which option is similar to Pencil : Student : School?
Q4. Which option is similar to Pencil : Student : School?
(A) Mouse : Eat : Biscuit
(A) Mouse : Eat : Biscuit
(A) Mouse : Eat : Biscuit
(B) Computer : Officer : Bank
(B) Computer : Officer : Bank
(B) Computer : Officer : Bank
(C) Pen : Writer : Book
(C) Pen : Writer : Book
(C) Pen : Writer : Book
(D) Cash : Shopkeeper : Goods
(D) Cash : Shopkeeper : Goods
(D) Cash : Shopkeeper : Goods
Answer: (B) Computer : Officer : Bank
Answer: (B) Computer : Officer : Bank
Answer: (B) Computer : Officer : Bank
Computer : Officer : Bank.
Pencil is used by a Student in School similarly Computer is used by an Officer in Bank.
Computer : Officer : Bank. Pencil is used by a Student in School similarly Computer is used by an Officer in Bank.
Computer : Officer : Bank. Pencil is used by a Student in School similarly Computer is used by an Officer in Bank.
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Q5. Which of the following is not a core language used for front-end web development?
Q5. Which of the following is not a core language used for front-end web development?
(A) HTML
(A) HTML
(A) HTML
(B) Python
(B) Python
(B) Python
(C) JavaScript
(C) JavaScript
(C) JavaScript
(D) CSS
(D) CSS
(D) CSS
Answer: (B) Python
Answer: (B) Python
Answer: (B) Python
HTML (HyperText Markup Language) is the foundation for structuring web content. CSS (Cascading Style Sheets) is used for styling the visual presentation. JavaScript adds interactivity and dynamic behavior. XML (Extensible Markup Language) is used for storing and transporting data, but it's not a core language for front-end web development in the same way the others are. Python is a general-purpose programming language often used for back-end development, but not typically for directly building the user interface of a website.
HTML (HyperText Markup Language) is the foundation for structuring web content. CSS (Cascading Style Sheets) is used for styling the visual presentation. JavaScript adds interactivity and dynamic behavior. XML (Extensible Markup Language) is used for storing and transporting data, but it's not a core language for front-end web development in the same way the others are. Python is a general-purpose programming language often used for back-end development, but not typically for directly building the user interface of a website.
HTML (HyperText Markup Language) is the foundation for structuring web content. CSS (Cascading Style Sheets) is used for styling the visual presentation. JavaScript adds interactivity and dynamic behavior. XML (Extensible Markup Language) is used for storing and transporting data, but it's not a core language for front-end web development in the same way the others are. Python is a general-purpose programming language often used for back-end development, but not typically for directly building the user interface of a website.
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Q6. How does a computer's CPU process instructions?
Q6. How does a computer's CPU process instructions?
(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 executing instructions stored in memory
(C) By executing instructions stored in memory
(C) By executing instructions stored in memory
(D) By displaying graphics on the screen
(D) By displaying graphics on the screen
(D) By displaying graphics on the screen
Answer: (C) By executing instructions stored in memory
Answer: (C) By executing instructions stored in memory
Answer: (C) By executing instructions stored in memory
The CPU (Central Processing Unit) is the "brain" of the computer, responsible for executing instructions. It performs this task through a repetitive cycle: Fetch, Decode, Execute. This cycle repeats continuously, allowing the CPU to process a large number of instructions in a short period, enabling the computer to perform tasks and run programs.
The CPU (Central Processing Unit) is the "brain" of the computer, responsible for executing instructions. It performs this task through a repetitive cycle: Fetch, Decode, Execute. This cycle repeats continuously, allowing the CPU to process a large number of instructions in a short period, enabling the computer to perform tasks and run programs.
The CPU (Central Processing Unit) is the "brain" of the computer, responsible for executing instructions. It performs this task through a repetitive cycle: Fetch, Decode, Execute. This cycle repeats continuously, allowing the CPU to process a large number of instructions in a short period, enabling the computer to perform tasks and run programs.
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Q7. Which of the following is not a type of computer code?
Q7. Which of the following is not a type of computer code?
(A) Source code
(A) Source code
(A) Source code
(B) Object code
(B) Object code
(B) Object code
(C) Machine code
(C) Machine code
(C) Machine code
(D) Design code
(D) Design code
(D) Design code
Answer: (D) Design code
Answer: (D) Design code
Answer: (D) Design code
Computer code refers to the instructions that a computer can understand and execute. Source code is human-readable code written by programmers using a high-level programming language (e.g., Python, Java, C++).Object code is the output of a compiler after translating source code into machine-readable instructions, but it's not yet executable on its own and often needs to be linked with other object files. Machine code is the lowest-level programming language, directly executable by a computer's CPU. It consists of binary instructions (0s and 1s).Bytecode is an intermediate form of code that is typically executed by a virtual machine (like the Java Virtual Machine). It's platform-independent.
Computer code refers to the instructions that a computer can understand and execute. Source code is human-readable code written by programmers using a high-level programming language (e.g., Python, Java, C++).Object code is the output of a compiler after translating source code into machine-readable instructions, but it's not yet executable on its own and often needs to be linked with other object files. Machine code is the lowest-level programming language, directly executable by a computer's CPU. It consists of binary instructions (0s and 1s).Bytecode is an intermediate form of code that is typically executed by a virtual machine (like the Java Virtual Machine). It's platform-independent.
Computer code refers to the instructions that a computer can understand and execute. Source code is human-readable code written by programmers using a high-level programming language (e.g., Python, Java, C++).Object code is the output of a compiler after translating source code into machine-readable instructions, but it's not yet executable on its own and often needs to be linked with other object files. Machine code is the lowest-level programming language, directly executable by a computer's CPU. It consists of binary instructions (0s and 1s).Bytecode is an intermediate form of code that is typically executed by a virtual machine (like the Java Virtual Machine). It's platform-independent.
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Q8. p, q, r are three numbers such that the LCM of p and q is q and the LCM of q and r is r. The LCM of p, q and r will be
Q8. p, q, r are three numbers such that the LCM of p and q is q and the LCM of q and r is r. The LCM of p, q and r will be
(A) q
(A) q
(A) q
(B) r
(B) r
(B) r
(C) qr
(C) qr
(C) qr
(D) pqr
(D) pqr
(D) pqr
Answer: (B) r
Answer: (B) r
Answer: (B) r
LCM will be r.
px= q and qy = r, hence r = pxy.
LCM will be r. px= q and qy = r, hence r = pxy.
LCM will be r. px= q and qy = r, hence r = pxy.
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Q9. Find the odd letters from the given below
Q9. Find the odd letters from the given below
PQR, PON, DCB, SQR
PQR, PON, DCB, SQR
PQR, PON, DCB, SQR
(A) DCB
(A) DCB
(A) DCB
(B) PQR
(B) PQR
(B) PQR
(C) SRQ
(C) SRQ
(C) SRQ
(D) PON
(D) PON
(D) PON
Answer: (B) PQR
Answer: (B) PQR
Answer: (B) PQR
PQR
PQR
PQR
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Q10. Which of the following is not a type of computer code?
Q10. Which of the following is not a type of computer code?
(A) EDIC
(A) EDIC
(A) EDIC
(B) ASCII
(B) ASCII
(B) ASCII
(C) BCD
(C) BCD
(C) BCD
(D) EBCDIC
(D) EBCDIC
(D) EBCDIC
Answer: (A) EDIC
Answer: (A) EDIC
Answer: (A) EDIC
The options listed are related to character encoding schemes, which are methods of representing text characters in computers. ASCII (American Standard Code for Information Interchange) is a widely used character encoding standard that represents text in computers, telecommunications equipment, and other devices. BCD (Binary-Coded Decimal) is a method of encoding decimal numbers where each decimal digit is represented by its own binary sequence. While primarily for numbers, it's a form of data representation or "code." EBCDIC (Extended Binary Coded Decimal Interchange Code) is another character encoding standard, primarily used on IBM mainframe operating systems.
The options listed are related to character encoding schemes, which are methods of representing text characters in computers. ASCII (American Standard Code for Information Interchange) is a widely used character encoding standard that represents text in computers, telecommunications equipment, and other devices. BCD (Binary-Coded Decimal) is a method of encoding decimal numbers where each decimal digit is represented by its own binary sequence. While primarily for numbers, it's a form of data representation or "code." EBCDIC (Extended Binary Coded Decimal Interchange Code) is another character encoding standard, primarily used on IBM mainframe operating systems.
The options listed are related to character encoding schemes, which are methods of representing text characters in computers. ASCII (American Standard Code for Information Interchange) is a widely used character encoding standard that represents text in computers, telecommunications equipment, and other devices. BCD (Binary-Coded Decimal) is a method of encoding decimal numbers where each decimal digit is represented by its own binary sequence. While primarily for numbers, it's a form of data representation or "code." EBCDIC (Extended Binary Coded Decimal Interchange Code) is another character encoding standard, primarily used on IBM mainframe operating systems.
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Related Questions
1. Two numbers are in the ratio of 2 : 3 and the product of their LCM and HCF is 96. The sum of the numbers is2. Which of the following words cannot be made using the letters of MENDICANT?3. Which of the following punctuation marks is called ‘hyphen’?4. Choose the correctly spelt word.5. Which of the following is the correct abbreviation of COMPUTER?6. What is the term for all positive and negative numbers as a whole including zero?7. If ROBOTICS is coded as OROBITSC, then PROJECTS would be coded as8. What is the term used to describe the process of converting data into a code that cannot be read or understood without a key?9. What is the smallest unit of data in a computer?10. The median of the sequence of numbers 2, – 1, 3, 1, – 2, 5, 6 is11. How many prime numbers exist, which are less than 40?12. What is the purpose of a firewall in a computer network?13. What does BIOS stands for in computer?14. Three numbers are in the ratio 3:4:5. The sum of the largest and the smallest equals the sum of the third and 52. The smallest number is15. The sum of first 6 prime numbers is16. Which of the following is not a characteristic of a computer?17. Who is the father of Computers?18. The sum of the four consecutive alternate numbers is 64. The smallest number amongst them is19. Which of the following monitor looks like a television and are normally used with non-portable computer systems?20. Which of the following is not an operating system for Computers?